Beginner Challenge 1 Submission

[lxyhcx]

The Twitter link: https://twitter.com/lxy78956158/status/1447373940805013509
Discord: xy#5856

I run Challenge 1 program in a docker container. 9944 port can not be bind as 0.0.0.0. When using --ws-external parameter of phala-node, the phala-pherry still report the unsafe error. So I install openssh-server in docker container, and use ssh -L to bind port. It is working now.