def fb(n):
    if n % 3 == 0:
        ret = "Fizz"
    elif n % 5 == 0:
        ret = "Buzz"
    elif n % 15 == 0:
        ret = "FizzBuzz"
    else:
        ret = ""
    return ret

i = 1
while i <= 20:
    print(i, fb(i))
    i = i + 1