N = gets.to_i

turn = 0

loop {
  if turn == 0
    case N
    when 1
      STDOUT.puts "1 1"
    when 2
      STDOUT.puts "2 1"
    else
      if N.even?
        STDOUT.puts "2 #{N / 2}"
      else
        STDOUT.puts "1 #{N / 2 + 1}"
      end
    end
  else
    k, x = gets.split.map(&:to_i)
    i = N - x + 1 - (k - 1)
    STDOUT.puts "%d %d" % [k, i]
  end

  STDOUT.flush
  t = gets.to_i
  break if t == 0 || t == 1
  turn += 1
}