(function() {
  var cls, fs;

  cls = function(a) {
    switch (false) {
      case !(a <= 48.00):
        return 'light fly';
      case !(48.00 < a && a <= 51.00):
        return 'fly';
      case !(51.00 < a && a <= 54.00):
        return 'bantam';
      case !(54.00 < a && a <= 57.00):
        return 'feather';
      case !(57.00 < a && a <= 60.00):
        return 'light';
      case !(60.00 < a && a <= 64.00):
        return 'light welter';
      case !(64.00 < a && a <= 69.00):
        return 'welter';
      case !(69.00 < a && a <= 75.00):
        return 'light middle';
      case !(75.00 < a && a <= 81.00):
        return 'middle';
      case !(81.00 < a && a <= 91.00):
        return 'light heavy';
      default:
        return 'heavy';
    }
  };

  fs = require('fs');

  fs.readFile('/dev/stdin', 'utf8', function(_, out) {
    return out.split('\n').slice(0, -1).map(function(s) {
      return +s;
    }).forEach(function(s) {
      return console.log(cls(s));
    });
  });

}).call(this);