import random

def user_input():
    while True:
        try:
            num_dice = int(input("Number of dice? "))
            num_rolls = int(input("Number of rolls? "))

            assert(num_dice > 0)
            assert(num_rolls > 0)

            return num_dice, num_rolls
        except ValueError:
            print("Enter only whole numbers")
            pass
        except AssertionError:
            print ("Cannot be less than one")

    user_unput = (num_dice,num_rolls)
    return user_input

def rolls(x):
    rolls_generated = []
    list_of_rolls = []
    for i in range(x[1]):
        sum = int()
        for j in range(x[0]):
            throw = random.randint(1,6)
            sum = sum + throw
        rolls_generated.append(sum)
    for i in range(x[0]*6):
        count = rolls_generated.count(i+x[0])
        list_of_rolls.append(count)
    return list_of_rolls

def format(x,y):

    ratio = 50 / max(y)
    possibilities = (x[0] * 6 - (x[0]-1))
    for i in range(possibilities):
        label = x[0] + i
        num_stars = int(ratio*y[i])
        try:
            assert(num_stars <= 50)
            print(str(label) + " " + str(num_stars * "*") + " " + str(y[i]))

        except AssertionError:
            print ("You can't have more than 50 stars")

def main():
    while True:
        a = user_input()
        b = rolls(a)
        format(a,b)
        exit = input("Type 'done' to exit: ")
        if exit == "done":
            break
        else:
            print("")
main()