import math

text: str

with open("input.txt") as f:
    text = f.read()

def blink(stones: list[int]):
    new_stones: list[int] = []
    for stone in stones:
        tmp: str = str(stone)
        length: int = len(tmp) 
        if (stone == 0):
            new_stones.append(1)
        elif (length % 2 == 0):
            new_stones.append(int(tmp[0:length // 2]))
            new_stones.append(int(tmp[length // 2:]))
        else:
            new_stones.append(stone * 2024)
    return new_stones

stones = list(map(int, text.split(" ")))

for i in range(25):
    stones = blink(stones)
    print(i)

print(len(stones))