I don't know how to do backward on same INPUT command. Are you guys will help me?

I got RIGHT$ right. I sent engine one out. Key: 43V354SD I make program more retro thing.

Sample ACLS A$="Hello SmileBASIC! " L=LEN(A$) WHILE 1 A$=RIGHT$(A$,L-1)+LEFT$(A$,1) LOCATE 15,12:?A$ VSYNC 20 WEND

We can replace both RIGHT$ and LEFT$ with MID$ as follows. 'same as ?RIGHT$(ST$,N) ?MID$(ST$,LEN(ST$)-N,N) 'same as ?LEFT$(ST$,N) ?MID$(ST$,0,N)