(scheme cxr)Exports the following procedure which are the compositions of from three to four car and cdr operations. For example caddar could be defined:
(define caddar
(lambda (x) (car (cdr (cdr (car x))))))
Here is the full list:
caaaarcaaadrcaaarcaadarcaaddrcaadrcadaarcadadrcadarcaddarcadddrcaddrcdaaarcdaadrcdaarcdadarcdaddrcdadrcddaarcddadrcddarcdddarcddddrcdddr