result_p1 = 0
result_p2 = 0
for mass in io.lines(arg[1], "n") do
    fuel = mass // 3 - 2
    result_p1 = result_p1 + fuel
    while fuel > 0 do
        result_p2 = result_p2 + fuel
        fuel = fuel // 3 - 2
    end
end
print("Part 1:", result_p1)
print("Part 2:", result_p2)