#!/usr/bin/env python3

import functools

stones = []
with open("day11") as f:
    l = f.read().split(' ')
    stones = list(map(int, l))

# 1
def part1():
    for i in range(25):
        s = 0
        while s < len(stones):
            match stones[s]:
                case 0:
                    stones[s] = 1
                    s += 1
                case num if len(str(num))%2==0:
                    l = len(str(num))
                    stones[s] = int(str(num)[:l//2])
                    stones.insert(s+1, int(str(num)[-l//2:]))
                    s += 2
                case _:
                    stones[s] = stones[s] * 2024
                    s += 1

    print(len(stones))

# 2
@functools.cache
def memo_me(stone, its):
    if its == 0: return 1

    if stone == 0:
        return memo_me(1, its-1)
    if len(str(stone))%2==0:
        l = len(str(stone))
        return memo_me(int(str(stone)[:l//2]), its-1) + memo_me(int(str(stone)[-l//2:]), its-1)
    else:
        return memo_me(stone*2024, its-1)


def part2():
    num_stones = 0
    for stone in stones:
        num_stones += memo_me(stone, 75)
    print(num_stones)

part2()