function solution6(n)
    initial = parse.(Int, split(readline("6.data"),","))
    fish = [count(initial .== i) for i in 0:8]
    for _ in 1:n
        fish = circshift(fish, -1)
        fish[7] += fish[9]
    end
    sum(fish)
end

function solution6_1()
    solution6(80)
end

function solution6_2()
    solution6(256)
end

solution6_1(),solution6_2()