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i didn't notice it, it's a habit putting list after n perhaps subconsciousness like cons apply mapcar vl-remove etc..

Another (defun _relist (lst n) ((lambda (i / l m) (while (and (< i n) (setq v (Car lst))) (setq l (cons v l) i (1+ i) lst (cdr lst)) ) (append (reverse l) (reverse lst)) ) 0 ) ) @ hanhphuc You just have to go the other way than the rest of us don't you.. < n before l st > (defun revnth (n lst)... (defun foo (i l / n k)...

Thanks @Tharwat and @dlanorh and @ hanhphuc Sorry for my late reply The lisps were shown working great and I think beautiful thanks ALL