# Function to add two numbers  

def add(num1, num2): 

    return num1 + num2 

  
# Function to subtract two numbers  

def subtract(num1, num2): 

    return num1 - num2 

  
# Function to multiply two numbers 

def multiply(num1, num2): 

    return num1 * num2 

  
# Function to divide two numbers 

def divide(num1, num2): 

    return num1 / num2


print("Please select operation -\n" \ 

        "1. Add\n" \ 

        "2. Subtract\n" \ 

        "3. Multiply\n" \ 

        "4. Divide\n")


# Take input from the user  

select = int(input("Select operations form 1, 2, 3, 4 :"))


number_1 = int(input("Enter first number: ")) 

number_2 = int(input("Enter second number: "))


if select == 1: 

    print(number_1, "+", number_2, "=", 

                    add(number_1, number_2))


elif select == 2: 

    print(number_1, "-", number_2, "=", 

                    subtract(number_1, number_2))


elif select == 3: 

    print(number_1, "*", number_2, "=", 

                    multiply(number_1, number_2))


elif select == 4: 

    print(number_1, "/", number_2, "=", 

                    divide(number_1, number_2)) 

else: 

    print("Invalid input")