puts 'NO HAND'  if arr.length == 5 || arr.length == 1
puts 'ONE PAIR' if arr.length == 4
if arr.length == 3
  puts 'TWO PAIR'  if arr[2].length == 2
  puts 'THREE CARD' if arr[2].length == 3
end
if arr.length == 2
  puts 'FULL HOUSE' if arr[1].length == 3
  puts 'NO HAND' if arr[1].length == 4
end