Just a number. Like an exercise, we call it pull-ups. Second, practice, which we call belly rolling. Three exercises, we call one arm+backward. In the fourth exercise, we call it arms hanging legs+forward flip. Five exercises, we call arms+abdominal ring. The sixth exercise, we call it hanging legs and arms+back flip. (6 exercises may be wrong) 7 exercises, we call it double-arm pull rod+abdominal ring+cat jump. Eight exercises, which we call big circle. I'm sorry for my ignorance, but I haven't seen it yet. Maybe gymnastics.