const input = gets()

function submitResult(input) {

    let text = '';

      switch(input) {
    case '0':
      text = 'zero';
      break;
    case '1':
      text = 'one';
      break;
    case '2':
      text = 'two';
      break;
    case '3':
      text = 'three';
      break;
    case '4':
      text = 'four';
      break;
    case '5':
      text = 'five';
      break;
    case '6':
      text = 'six';
      break;
    case '7':
      text = 'seven';
      break;
    case '8':
      text = 'eight';
      break;
    case '9':
      text = 'nine';
      break;
    default:
      text = 'not a digit';
  }
    print(text)

}

submitResult(input)