#!/usr/bin/env python3

import sys
from copy import deepcopy
import numpy as np

def memo(f):
    memo = {}

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


@memo
def blink(stone, i):
    if i == 0: return 1
    else: i -= 1
    if stone == 0: return blink(1,i)
    elif len(str(stone)) % 2 == 0:
        ds = int(len(str(int(stone)))/2)
        return(blink(int(str(int(stone))[:ds]),i) + blink(int(str(int(stone))[ds:]),i))
    else: return blink(stone*2024, i)


if __name__ == '__main__':
    stones = [int(n) for n in open(sys.argv[1]).read().strip('\n').split(' ')]

    res1, res2 = 0, 0
    for s in stones:
        res1 += blink(s, 25)
        res2 += blink(s, 75)

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

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