diff --git a/MVCcallange.xcodeproj/project.pbxproj b/MVCcallange.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..07efc02
--- /dev/null
+++ b/MVCcallange.xcodeproj/project.pbxproj
@@ -0,0 +1,345 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		A5339C7F2192358F0005DCB9 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5339C7E2192358F0005DCB9 /* AppDelegate.swift */; };
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+		A5339C89219235900005DCB9 /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = A5339C87219235900005DCB9 /* LaunchScreen.storyboard */; };
+		A5339C91219235D80005DCB9 /* Model.swift in Sources */ = {isa = PBXBuildFile; fileRef = A5339C90219235D80005DCB9 /* Model.swift */; };
+/* End PBXBuildFile section */
+
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+		A5339C7B2192358F0005DCB9 /* MVCcallange.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = MVCcallange.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		A5339C7E2192358F0005DCB9 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		A5339C802192358F0005DCB9 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		A5339C832192358F0005DCB9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		A5339C85219235900005DCB9 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		A5339C88219235900005DCB9 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		A5339C8A219235900005DCB9 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		A5339C90219235D80005DCB9 /* Model.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Model.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
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+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		A5339C722192358F0005DCB9 = {
+			isa = PBXGroup;
+			children = (
+				A5339C7D2192358F0005DCB9 /* MVCcallange */,
+				A5339C7C2192358F0005DCB9 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		A5339C7C2192358F0005DCB9 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				A5339C7B2192358F0005DCB9 /* MVCcallange.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		A5339C7D2192358F0005DCB9 /* MVCcallange */ = {
+			isa = PBXGroup;
+			children = (
+				A5339C7E2192358F0005DCB9 /* AppDelegate.swift */,
+				A5339C802192358F0005DCB9 /* ViewController.swift */,
+				A5339C90219235D80005DCB9 /* Model.swift */,
+				A5339C822192358F0005DCB9 /* Main.storyboard */,
+				A5339C85219235900005DCB9 /* Assets.xcassets */,
+				A5339C87219235900005DCB9 /* LaunchScreen.storyboard */,
+				A5339C8A219235900005DCB9 /* Info.plist */,
+			);
+			path = MVCcallange;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		A5339C7A2192358F0005DCB9 /* MVCcallange */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = A5339C8D219235900005DCB9 /* Build configuration list for PBXNativeTarget "MVCcallange" */;
+			buildPhases = (
+				A5339C772192358F0005DCB9 /* Sources */,
+				A5339C782192358F0005DCB9 /* Frameworks */,
+				A5339C792192358F0005DCB9 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = MVCcallange;
+			productName = MVCcallange;
+			productReference = A5339C7B2192358F0005DCB9 /* MVCcallange.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		A5339C732192358F0005DCB9 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastSwiftUpdateCheck = 1010;
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = "Sergey Osipyan";
+				TargetAttributes = {
+					A5339C7A2192358F0005DCB9 = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = A5339C762192358F0005DCB9 /* Build configuration list for PBXProject "MVCcallange" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = A5339C722192358F0005DCB9;
+			productRefGroup = A5339C7C2192358F0005DCB9 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				A5339C7A2192358F0005DCB9 /* MVCcallange */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		A5339C792192358F0005DCB9 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				A5339C89219235900005DCB9 /* LaunchScreen.storyboard in Resources */,
+				A5339C86219235900005DCB9 /* Assets.xcassets in Resources */,
+				A5339C842192358F0005DCB9 /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		A5339C772192358F0005DCB9 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				A5339C91219235D80005DCB9 /* Model.swift in Sources */,
+				A5339C812192358F0005DCB9 /* ViewController.swift in Sources */,
+				A5339C7F2192358F0005DCB9 /* AppDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		A5339C822192358F0005DCB9 /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				A5339C832192358F0005DCB9 /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		A5339C87219235900005DCB9 /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				A5339C88219235900005DCB9 /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		A5339C8B219235900005DCB9 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		A5339C8C219235900005DCB9 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		A5339C8E219235900005DCB9 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = KF4QEGAU36;
+				INFOPLIST_FILE = MVCcallange/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = Sergey.MVCcallange;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		A5339C8F219235900005DCB9 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CODE_SIGN_STYLE = Automatic;
+				DEVELOPMENT_TEAM = KF4QEGAU36;
+				INFOPLIST_FILE = MVCcallange/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = Sergey.MVCcallange;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		A5339C762192358F0005DCB9 /* Build configuration list for PBXProject "MVCcallange" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				A5339C8B219235900005DCB9 /* Debug */,
+				A5339C8C219235900005DCB9 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		A5339C8D219235900005DCB9 /* Build configuration list for PBXNativeTarget "MVCcallange" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				A5339C8E219235900005DCB9 /* Debug */,
+				A5339C8F219235900005DCB9 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = A5339C732192358F0005DCB9 /* Project object */;
+}
diff --git a/MVCcallange/AppDelegate.swift b/MVCcallange/AppDelegate.swift
new file mode 100644
index 0000000..d13a827
--- /dev/null
+++ b/MVCcallange/AppDelegate.swift
@@ -0,0 +1,9 @@
+
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+}
+
diff --git a/MVCcallange/Assets.xcassets/AppIcon.appiconset/Contents.json b/MVCcallange/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d8db8d6
--- /dev/null
+++ b/MVCcallange/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "76x76",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ipad",
+      "size" : "83.5x83.5",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "size" : "1024x1024",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/MVCcallange/Assets.xcassets/Contents.json b/MVCcallange/Assets.xcassets/Contents.json
new file mode 100644
index 0000000..da4a164
--- /dev/null
+++ b/MVCcallange/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/MVCcallange/Base.lproj/LaunchScreen.storyboard b/MVCcallange/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..bfa3612
--- /dev/null
+++ b/MVCcallange/Base.lproj/LaunchScreen.storyboard
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>
diff --git a/MVCcallange/Base.lproj/Main.storyboard b/MVCcallange/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..38baeac
--- /dev/null
+++ b/MVCcallange/Base.lproj/Main.storyboard
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="MVCcallange" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" spacing="8" translatesAutoresizingMaskIntoConstraints="NO" id="UVG-Az-jdM">
+                                <rect key="frame" x="8" y="28" width="359" height="631"/>
+                                <subviews>
+                                    <stackView opaque="NO" contentMode="scaleToFill" spacing="8" translatesAutoresizingMaskIntoConstraints="NO" id="Psz-Mt-bMO">
+                                        <rect key="frame" x="0.0" y="0.0" width="359" height="30"/>
+                                        <subviews>
+                                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="New Item ..." textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="PVd-jb-SC2">
+                                                <rect key="frame" x="0.0" y="0.0" width="321" height="30"/>
+                                                <nil key="textColor"/>
+                                                <fontDescription key="fontDescription" type="system" pointSize="14"/>
+                                                <textInputTraits key="textInputTraits"/>
+                                            </textField>
+                                            <button opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="1000" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="bDE-Rr-bxd">
+                                                <rect key="frame" x="329" y="0.0" width="30" height="30"/>
+                                                <state key="normal" title="Add"/>
+                                                <connections>
+                                                    <action selector="shouldAdd:" destination="BYZ-38-t0r" eventType="touchUpInside" id="6LO-JB-aO4"/>
+                                                </connections>
+                                            </button>
+                                        </subviews>
+                                    </stackView>
+                                    <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="F85-gU-6T3">
+                                        <rect key="frame" x="0.0" y="38" width="359" height="555"/>
+                                        <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                        <nil key="textColor"/>
+                                        <nil key="highlightedColor"/>
+                                    </label>
+                                    <button opaque="NO" contentMode="scaleToFill" verticalHuggingPriority="1000" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="paY-ud-a6f">
+                                        <rect key="frame" x="0.0" y="601" width="359" height="30"/>
+                                        <state key="normal" title="Reset"/>
+                                        <connections>
+                                            <action selector="shouldAdd:" destination="BYZ-38-t0r" eventType="touchUpInside" id="jVl-c0-GDn"/>
+                                            <action selector="shouldReset:" destination="BYZ-38-t0r" eventType="touchUpInside" id="7GE-rd-o4f"/>
+                                        </connections>
+                                    </button>
+                                </subviews>
+                            </stackView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="UVG-Az-jdM" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" constant="8" id="9b5-nX-i4l"/>
+                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="bottom" secondItem="UVG-Az-jdM" secondAttribute="bottom" constant="8" id="eSw-7k-fnn"/>
+                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="UVG-Az-jdM" secondAttribute="trailing" constant="8" id="r1b-nk-5rp"/>
+                            <constraint firstItem="UVG-Az-jdM" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="8" id="rEo-t0-YAN"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                    <connections>
+                        <outlet property="label" destination="F85-gU-6T3" id="IWe-Kn-R0U"/>
+                        <outlet property="textField" destination="PVd-jb-SC2" id="DbY-Ng-XqH"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/MVCcallange/Info.plist b/MVCcallange/Info.plist
new file mode 100644
index 0000000..16be3b6
--- /dev/null
+++ b/MVCcallange/Info.plist
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>
diff --git a/MVCcallange/Model.swift b/MVCcallange/Model.swift
new file mode 100644
index 0000000..c48c745
--- /dev/null
+++ b/MVCcallange/Model.swift
@@ -0,0 +1,21 @@
+
+import Foundation
+
+class Model {
+    static let shared = Model()
+    private init() {}
+    
+    private(set) var items: [String] = []
+    
+    func add(_ item: String) {
+        items.append(item)
+        // add the item to your items list
+    }
+    
+    func resetItems() {
+        
+       items = []
+        // reset your items list here
+    } 
+    
+}
diff --git a/MVCcallange/ViewController.swift b/MVCcallange/ViewController.swift
new file mode 100644
index 0000000..4e2e0e9
--- /dev/null
+++ b/MVCcallange/ViewController.swift
@@ -0,0 +1,27 @@
+
+import UIKit
+
+class ViewController: UIViewController {
+   
+    @IBOutlet weak var textField: UITextField!
+    
+    
+    @IBOutlet weak var label: UILabel!
+    
+    
+    
+    @IBAction func shouldAdd(_ sender: UIButton) {
+        
+        let text = textField.text ?? ""
+        if !text.isEmpty {
+            Model.shared.add(text)
+            textField.text = ""
+            let joined = Model.shared.items.joined(separator: "\n")
+            label.text = joined
+        }
+    }
+    @IBAction func shouldReset(_ sender: UIButton) {
+        Model.shared.resetItems()
+         label.text = ""
+    }
+}
diff --git a/Questions.md b/Questions.md
new file mode 100644
index 0000000..9adc887
--- /dev/null
+++ b/Questions.md
@@ -0,0 +1,24 @@
+
+What is Interface Builder's object library?
+The Interface Builder's object library is a collection of objects that are use to build
+difference interactions within the interface....  buttons, text fields, views and etc...
+
+What is the difference between an outlet and an action?
+An IBOutlet is a variable which is a reference to a UI component.
+An IBAction is a function which is called when a specific user interaction occurs.
+
+What is the role of a View Controller?
+A View Controller manages a portion of interface as well as the interactions between
+the interface and the underlying data. View controllers also facilitate transitions
+between different parts of the user interface
+
+What is Model-View-Controller?
+A Model View Controller is a design pattern made up of the three parts.
+Model − is responsible for maintaining data.
+View −  is responsible for displaying all or a portion of the data to the user.
+Controller −  is software code that controls the interactions between the Model and View.
+
+Why use Model-View-Controller?
+The MVC should be use for code reuse, better structure/organization and allowing for
+faster development process. MVC can allow difference individuals/teams to work on
+separate parts of the MVC application.