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