def main(argv, stdout):
    [lo_, hi_] = argv[1:3]
    lo, hi = int(lo_), int(hi_)

    for n in range(lo, hi):
        if n % 3 == 0 and n % 5 == 0:
            print("fizzbuzz", file=stdout)
        elif n % 3 == 0:
            print("fizz", file=stdout)
        elif n % 5 == 0:
            print("buzz", file=stdout)
        else:
            print(n, file=stdout)


if __name__ == '__main__':
    def _script_io():
        from sys import argv, stdout

        main(argv, stdout)

    _script_io()