def tw_sum(num1,num2):
    result = num1 + num2
    print('Sum result is : ' + str(result))

def tw_sub(num1,num2):
    result = num1 - num2
    print('Sub result is : ' + str(result))

def tw_mutiply(num1,num2):
    result = num1 * num2
    print('Multply result is : ' + str(result))

def tw_divide(num1,num2):
    result = num1 / num2
    print('Divide result is : ' + str(result))
