public class HelloWorld {
    public static void main(String[] args) {
  char today='日';
        switch(today){
        case '一':
        case '三':
        case '五':
             System.out.println("吃包子");
             break;
        case '二':
        case '四':
        case '六':
             System.out.println("吃油条");
             break;
        default:
             System.out.println("吃主席套餐");
        }
    }
}