import random


class Die():
    def __init__(self, sides):
        self.sides = sides

    def roll(self):
        return random.randint(1, self.sides)


class Cup():
    def __init__(self):
        self.dice = []

    def ask_user(self):
        x = input('how many dice?')

        for die in range(int(x)):
            self.add_die(6)

    def add_die(self, sides):
        self.dice.append(Die(sides))

    def roll(self):
        total = 0
        for die in self.dice:
            total += die.roll()

        return total


myCup = Cup()
myCup.ask_user()
print(myCup.roll())