from collections import deque
input = """\
125 17
"""
# input = open("2024/day11/data.txt").read()
values = deque(map(int, input.strip().split()))
for _ in range(25):
i = 0
while i < len(values):
value = values[i]
# if 0 -> 1
if value == 0:
values[i] = 1
# if even digits -> 2 stones, split in half
elif (len_val := len(str(value))) % 2 == 0:
new_val1 = int(str(value)[0 : len_val // 2])
new_val2 = int(str(value)[len_val // 2 :])
values[i] = new_val1
values.insert(i + 1, new_val2)
i += 1
# else old number * 2024
else:
value *= 2024
values[i] = value
i += 1
total = len(values)
print(total)