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


def sub(num1,num2):
    result=num1-num2
    return result


def mul(num1,num2):
   result=num1/num2
   return result

def fld(num1,num2):

    result=num1//num2
    return result

def exp(num1,num2):
   result=num1**num2
   return result