class Calc0040
  def initialize(args)
    args = args.map { |l| l.chomp.split(/\s+/) }
    @d = args.shift.first.to_i
    @as = args.shift.map(&:to_i)
  end

  def run
    as = @as.reverse
    until as.size <= 3
      a = as.first
      as[0] -= a
      as[2] += a
      as = as.drop_while { |a| a == 0 }
    end

    if as.empty?
      [0, 0]
    else
      [as.size - 1, as.reverse.join(' ')]
    end
  end
end

puts Calc0040.new(STDIN.readlines).run if __FILE__ == $0