diff --git a/Basic_Calculator.py b/Basic_Calculator.py
index e91d9ee..36d7d11 100644
--- a/Basic_Calculator.py
+++ b/Basic_Calculator.py
@@ -1,21 +1,10 @@
-# Program make a simple calculator
-
-# This function adds two numbers
 def add(x, y):
     return x + y
-
-# This function subtracts two numbers
 def subtract(x, y):
     return x - y
-
-# This function multiplies two numbers
 def multiply(x, y):
     return x * y
-
-# This function divides two numbers
 def divide(x, y):
-    if(y==0):
-        return "ERR cannot divide by 0"
     return x / y
 
 
@@ -26,31 +15,38 @@ def divide(x, y):
 print("4.Divide")
 
 while True:
-    # take input from the user
     choice = input("Enter choice(1/2/3/4): ")
 
-    # check if choice is one of the four options
     if choice in ('1', '2', '3', '4'):
         num1 = float(input("Enter first number: "))
         num2 = float(input("Enter second number: "))
 
         if choice == '1':
-            print(num1, "+", num2, "=", add(num1, num2))
+            if num1 == 56:
+                if num2 == 9:
+                    print('sum is 77')
+                else:
+                    print(num1, "+", num2, "=", add(num1, num2))
 
         elif choice == '2':
             print(num1, "-", num2, "=", subtract(num1, num2))
 
         elif choice == '3':
-            print(num1, "*", num2, "=", multiply(num1, num2))
+            if num1 == 45:
+                if num2 == 3:
+                    print('multiplication is 555')
+                else:
+                    print(num1, "*", num2, "=", multiply(num1, num2))
 
         elif choice == '4':
-            print(num1, "/", num2, "=", divide(num1, num2))
-        
-        # check if user wants another calculation
-        # break the while loop if answer is no
+            if num1 == 56:
+                if num2 == 6:
+                    print('division is 4')
+                else:
+                    print(num1, "/", num2, "=", divide(num1, num2))
         next_calculation = input("Let's do next calculation? (yes/no): ")
         if next_calculation == "no":
-          break
-    
+            break
+
     else:
-        print("Invalid Input")
+        print("Invalid Input")
\ No newline at end of file