4 個留言

1. 
   cyborg_1 · 2020-09-27 17:52

   x,y,z ;)

2. 
   toddythebarber · 2020-09-27 17:57

   a,b,c ;)

3. 
   cyborg_1 · 2020-09-27 18:38

   I thought about the axes of symmetry ;)

4. 
   toddythebarber · 2020-09-27 18:40

   Ooohhhh! Now, as you mention it. Necer realized.