> For the complete documentation index, see [llms.txt](https://gitbook-88.gitbook.io/ctf-writeup/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-36d-bei/qian-dao.md).

# 签到

```
W9@F0>:2?0D9:07=28X/3/TUW/o/7/PUo/ST7/T/6/R
```

rot47解码

```
(hou_mian_shi_flag)^b^%&(^@^f^!&@^$%f^%^e^#
```

提示后面是flag，再根据题目放的hint，将@替换为2，#替换为3，以此类推，再16进制转字符串获得flag。