HA, WA = gets.split.map(&:to_i)
HB, WB = gets.split.map(&:to_i)
HC, WC = gets.split.map(&:to_i)

data = {
  'A': [HA, WA],
  'B': [HB, WB],
  'C': [HC, WC],
}

puts %w(A B C).sort_by { |id|
  d = data[id.to_sym]

  [-d.first, d.last]
}