diff --git a/01_Day_Introduction/helloworld.py b/01_Day_Introduction/helloworld.py
index d8007868f..febfd8c91 100644
--- a/01_Day_Introduction/helloworld.py
+++ b/01_Day_Introduction/helloworld.py
@@ -6,9 +6,6 @@
 print(2 + 3)   # addition(+)
 print(3 - 1)   # subtraction(-)
 print(2 * 3)   # multiplication(*)
-print(3 + 2)   # addition(+)
-print(3 - 2)   # subtraction(-)
-print(3 * 2)   # multiplication(*)
 print(3 / 2)   # division(/)
 print(3 ** 2)  # exponential(**)
 print(3 % 2)   # modulus(%)
@@ -16,10 +13,10 @@
 
 # Checking data types
 
-print(type(10))                  # Int
-print(type(3.14))                # Float
-print(type(1 + 3j))              # Complex
-print(type('Asabeneh'))          # String
-print(type([1, 2, 3]))           # List
+print(type(10))                    # Int
+print(type(3.14))                  # Float
+print(type(1 + 3j))                # Complex
+print(type('Asabeneh'))            # String
+print(type([1, 2, 3]))             # List
 print(type({'name': 'Asabeneh'}))  # Dictionary
-print(type({9.8, 3.14, 2.7}))    # Tuple
+print(type({9.8, 3.14, 2.7}))      # Tuple