@@ -0,0 +1,71 @@
+def add(x, y):  
+
+   """This function adds two numbers"" 
+
+   return x + y 
+
+def subtract(x, y): 
+
+   """This function subtracts two numbers""" 
+
+   return x - y 
+
+def multiply(x, y): 
+
+   """This function multiplies two numbers""" 
+
+   return x * y 
+
+def divide(x, y): 
+
+   """This function divides two numbers"""  
+
+   return x / y  
+
+  
+
+print("Select operation.")  
+
+print("1.Add")  
+
+print("2.Subtract")  
+
+print("3.Multiply")  
+
+print("4.Divide")  
+
+  
+
+choice = input("Enter choice(1/2/3/4):")  
+
+  
+
+num1 = int(input("Enter first number: "))  
+
+num2 = int(input("Enter second number: "))  
+
+  
+
+if choice == '1':  
+
+   print(num1,"+",num2,"=", add(num1,num2))  
+
+  
+
+elif choice == '2':  
+
+   print(num1,"-",num2,"=", subtract(num1,num2))  
+
+  
+
+elif choice == '3':  
+
+   print(num1,"*",num2,"=", multiply(num1,num2))  
+
+elif choice == '4':  
+
+   print(num1,"/",num2,"=", divide(num1,num2))  
+
+else:  
+
+   print("Invalid input")