def add_numbers(num1 , num2):
    return num1+num2;

def substract_numbers(num1 , num2):
    return num1-num2;

def multiply_numbers(num1 , num2):
    return num1*num2;

def divide_numbers(num1 , num2):
    return num1/num2;

print(add_numbers(5,8))


