#!/usr/bin/env python3

import sys

def memo(f):
    memo = {}

    def f2(x,y):
        if x not in memo: memo[x] = f(x,y)
        return memo[x]
    return f2

@memo
def count(p, ts):
    poss = 0
    for t in [t for t in ts if p.startswith(t)]:
        if t == p: poss += 1
        poss += count(p[len(t):],ts)
    return poss


def possible(p, ts):
    poss = False
    for t in [t for t in ts if p.startswith(t)]:
        if t == p: return True
        poss = poss or possible(p[len(t):],ts)
        if poss: return True
    return poss


if __name__ == '__main__':
    towels, patterns = open(sys.argv[1]).read().split('\n\n')
    towels = [t for t in towels.strip('\n').split(', ')]
    patterns = patterns.strip('\n').split('\n')

    res1, res2 = 0, 0
    for pattern in patterns:
        res1 += possible(pattern, towels)
        if possible(pattern, towels):
            res2 += count(pattern, towels)

    # challenge 1
    print(f"challenge 1:\n{res1}\n")

    # challenge 2
    print(f"challenge 2:\n{res2}")