上下上下 (Shàngxià Shàngxià)

Background
It was called ↑↑↓↓ before, but this is like an alien language, so I've changed it to Chinese characters. I do think up down up down and up up down down sound the same..... Maybe another name change "Shàngxià Shàngxià" is an original song featuring Luo Tianyi.

This song exceeded 100,000 views on bilibili.