(define (f n)
(do ((d (do ((i (- n 1) (- i 1))
(d '() (cons i d)))
((< i 0) d))
(append (cddr d) (list (car d)))))
((null? (cdr d)) (car d))))
(display (f 1))
(display (f 2))
(display (f 3))
(display (f 4))
(display (f 5))
(display (f 6))
(display (f 7))
(display (f 8))
KGRlZmluZSAoZiBuKQogKGRvICgoZCAoZG8gKChpICgtIG4gMSkgKC0gaSAxKSkKICAgICAgICAgICAgICAoZCAnKCkgKGNvbnMgaSBkKSkpCiAgICAgICAgICAgICAoKDwgaSAwKSBkKSkKICAgICAgICAgKGFwcGVuZCAoY2RkciBkKSAobGlzdCAoY2FyIGQpKSkpKQogICAgICgobnVsbD8gKGNkciBkKSkgKGNhciBkKSkpKQooZGlzcGxheSAoZiAxKSkKKGRpc3BsYXkgKGYgMikpCihkaXNwbGF5IChmIDMpKQooZGlzcGxheSAoZiA0KSkKKGRpc3BsYXkgKGYgNSkpCihkaXNwbGF5IChmIDYpKQooZGlzcGxheSAoZiA3KSkKKGRpc3BsYXkgKGYgOCkp