import numpy as np

file = "inputs/day6.input"
numbers = [int(x) for x in open(file, "rb").read().decode().split(",")]

days = 80

current_day = numbers

for day in range(days):
    next_day = []
    for fish in current_day:
        if fish == 0:
            next_day.append(6)
            next_day.append(8)
        else:
            next_day.append(fish - 1)
    current_day = next_day

print(len(current_day))