diff --git a/CourseApp/Calc.cs b/CourseApp/Calc.cs
new file mode 100644
index 00000000..b5f10adb
--- /dev/null
+++ b/CourseApp/Calc.cs
@@ -0,0 +1,10 @@
+namespace CourseApp
+{
+    public class Calc
+    {
+        public int Multiply(int a, int b)
+        {
+            return a * b;
+        }
+    }
+}