public class HelloWorld {
    public static void main(String[] args) {
        char today='日';
        switch (today=7)
        {
            case 1:
                case 3:
                    case 5:
                System.out.println("吃包子");
                break;
                case 2:
                    case 4:
                    case 6:
                        System.out.println("吃油条");
                        break;
                        case 7:
                            System.out.println("吃主席套餐");
                            break;
        }
        
    }
}