name = input("Enter your name :  ")

reg_num = input("Enter your Reg number :  ")


print("Student Name :   ", name, "\nReg number  :   ", reg_num)

# Calculator that perform basic operation

def add(num1, num2):
    return num1 + num2

def subtract(num1, num2):
    return num1 - num2

def multiply(num1, num2):
    return num1 * num2

def divide(num1, num2):
    return num1 / num2

print("Please select operation -\n" \
        "1. Add\n" \
        "2. Subtract\n" \
        "3. Multiply\n" \
        "4. Divide\n")

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")