9lfnr2 8lfnr 7lfn 6lfnr2 5lfnr
kvenr jven ivenr2 hvenr gven
v4dn u4dnr2 t4dnr s4dn r4dnr2
6ddnr2 5ddnr 4ddn 3ddnr2 2ddnr
hncnr gncn fncnr2 encnr dncn