Python Program to write Simple Calculator

`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") # Take input from the user 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`