text: def eto_command(command):
      eto, year_str = command.split()
      year = int(year_str)
      number_of_eto = (year + 8) % 12
      eto_tuple = ("子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥")
      eto_name = eto_tuple[number_of_eto]
      response = f'{year}年生マレノ干支ハ「{eto_name}」デス。'
      return response
  