b-u bbb bbc bbk bbl bbu bcb bcc bcj bck bcl bcu bjc bjj bjk bju bkb bkc bkk bkl blb blc blj blk bll blu bub buc buj buk bul buu c-- c-j cbb cbc cbj cbk cbl cbu ccb ccc ccj cck ccl ccu cjb cjc cjk ckb ckc cl- clb clc clj clk cll clu cub cuc cuk cul cuu jbc jbj jbk jbl jbu jcb jcc jck jcl jcu jjb jjc jjj jjk jjl jju jkb jkk jkl jku jlb jlc jll jlu jub juk jul kbb kbc kbk kbl kbu kcb kcc kck kcl kcu kjb kjc kju kkb kkc kkk kkl kku kl- klb klc klu kub kuc kuj kuk kul kuu lbb lbc lbj lbk lbl lbu lcb lcc lcj lck lcl lcu ljj lju lkb lkl llb llc llj llk lll llu lub luc luk lul luu ubb ubc ubk ubl ubu ucb ucc ucj uck ucl ucu ujc ukb ukc ukk ukl uku ulb ulc ulk ull ulu uuc uuu