readlines.each do |l|
  puts case l.to_f.ceil
  when 0..48; "light fly"
  when 48..51; "fly"
  when 51..54; "bantam"
  when 54..57; "feather"
  when 57..60; "light"
  when 60..64; "light welter"
  when 64..69; "welter"
  when 69..75; "light middle"
  when 75..81; "middle"
  when 81..91; "light heavy"
  else "heavy"
  end
end