input = File.open('puzzle_6.txt').read.split(' ').map(&:to_i)
combinations = [ input.dup ]
while(true) do
    to_distribute = input.max
    start_at = input.index to_distribute
    input[start_at] = 0
    start_at += 1
    while(to_distribute > 0) do
        start_at %= input.length
        to_distribute -= 1
        input[start_at] += 1
        start_at += 1
    end
    if(combinations.include? input) then 
        puts combinations.index input
        break
    end
    combinations.push input.clone
end
puts combinations.length