import sys
from sys import argv


def mul(ns):
    if len(ns) == 1:
        return ns[0]
    else:
        return ns[0] * mul(ns[1:])


def persistence_succession(n):
    if 0 <= n <= 9:
        return [n]
    else:
        return [n] + persistence_succession(
            mul(list(int(i) for i in str(n)))
        )


def main ():
    n = None

    if len(argv) < 2:
        print("%s: <int>" % argv[0], file=sys.stderr)
        return 1

    n = int(argv[1])

    if n >= 0:
        print(
            *enumerate(persistence_succession(n)), sep="\n"
        )
        return 0
    else:
        print("A non-negative integer is required")
        return 1


if __name__ == "__main__":
    exit(main())