b-u bbb bbc bbe bbk bbo bbu bcb bcc bce bcj bck bco bcu be- beb bec bee bek beo beu bjc bjj bjk bju bkb bkc bke bkk bko bob boc boe boj bok boo bou bub buc bue buj buk buo buu c-- c-j cbb cbc cbe cbj cbk cbo cbu ccb ccc cce ccj cck cco ccu ce- ceb cec cee cej cek ceo ceu cjb cjc cjk ckb ckc cko co- cob coc coe coj cok coo cou cub cuc cue cuk cuo cuu ebb ebc ebe ebj ebk ebo ebu ec- ecb ecc ece ecj eck eco ecu eeb eec eee eek eeo ejc ejo eju ekb ekc eke eko eku eo- eob eoc eoe eok eoo eou eu- eub euc eue euj jbc jbj jbk jbo jbu jcb jcc jce jck jco jcu jeb jec jee jej jek jeo jeu jjb jjc jjj jjk jju jkb jkk jko jku job joc joe joj jok joo jou jub jue juk juo kbb kbc kbe kbk kbo kbu kcb kcc kce kck kcu ke- keb kec kee kek keo kjb kjc kje kju kkb kkc kke kkk kku kob koc koe kok koo kou kub kuc kue kuj kuk kuu ob- obb obc obe obj obk obo obu oc- ocb occ ocj ock oco ocu oeb oec oee oeo ojb ojc oje ojo oju okb okc oke okj okk oko oku oo- oob ooc ook ooo ou- ouc oue ouk ouo ubb ubc ube ubk ubo ubu ucb ucc uce ucj uck uco ucu ueb uec uee ujc ujo ukb ukc uke ukk uku uob uoc uoe uoj uok uoo uuc uue uuu