#!/usr/bin/env luajit
require("utils")

local fishes = {}
for timer = 0, 9 do
	fishes[timer] = 0
end

for _, timer in pairs(split(io.open(arg[3]):read("*a"), ",")) do
	fishes[tonumber(timer)] = fishes[tonumber(timer)] + 1
end

for day = 1, 256 do
	fishes[9] = (fishes[0] or 0) + (fishes[9] or 0)
	fishes[7] = (fishes[0] or 0) + (fishes[7] or 0)
	for timer = 0, 9 do
		fishes[timer] = fishes[timer + 1]
	end
end

local sum = 0
for timer, fishday in pairs(fishes) do
	sum = sum + fishday
end

print(sum)