On 4/4/22 8:57 AM, V3nom wrote: > define the lists: > > (define liste (cons 10(cons 20(cons 30(cons 40 ' ()))))) > (define liste2 (cons 20(cons 30(cons 10(cons 40 ' ()))))) This looks more like lisp or scheme. You know this is a forum for the D programming language? -Steve