-al -ly a-a a-b a-c aaa aab aac aak aal aas aay ab- aba abb abc abk abl abs aby ac- aca acb acc ack acl acs acy aka akb akc akk akl aks al- ala alb alc alk all als aly as- asa asb asc ask asl ass asy ay- aya ayc ayk ayl ays baa bab bac bak bal bas bay bba bbb bbc bbk bbl bbs bby bca bcb bcc bck bcl bcs bcy bka bkb bkc bkk bkl bks bla blb blc blk bll bls bly bsa bsb bsc bsk bsl bss bsy by- bya byc byk byl bys c-- caa cab cac cak cal cas cay cba cbb cbc cbk cbl cbs cby cca ccb ccc cck ccl ccs cka ckb ckc cks cky cl- cla clb clc clk cll cls cly csa csb csc csk csl css csy cya cyb cyc cyk cyl cys ka- kaa kab kac kak kal kas kay kba kbb kbc kbk kbl kbs kca kcb kcc kck kcl kcs kkb kkc kkk kkl kks kky kl- kla klb klc kls kly ksa ksb ksc ksk ksl kss kya kyc kyl kys la- laa lab lac lak lal las lay lba lbb lbc lbk lbl lbs lca lcb lcc lck lcl lcs lcy lka lkb lkl lks lky lla llb llc llk lll lls lly lsa lsb lsc lsk lsl lss lya lyc lyk lyl lys saa sab sac sak sal sas say sba sbb sbc sbk sbl sbs sby sca scb scc sck scl scs sk- ska skb skc skk skl sks sky sla slb slc slk sll sls sly ss- ssa ssb ssc ssk ssl sss sy- sya syb syc syk syl sys yaa yab yac yak yal yas yay ybc ybl ybs yby yca ycc ycl ycs ycy yka ykk ylc ylk yll yls yly ysa ysb ysc ysk ysl yss ysy yyb yyc yys yyy