-ic -ol b-u bbb bbc bbf bbi bbk bbl bbo bbs bbu bcb bcc bcf bci bck bcl bco bcs bcu bfb bfc bff bfi bfl bfo bfs bfu bi- bib bic bif bii bik bil bio bis biu bkb bkc bkf bkk bkl bko bks blb blc blf bli blk bll blo bls blu bob boc bof boi bok bol boo bos bou bsb bsc bsf bsi bsk bsl bso bss bsu bub buc buf bui buk bul buo bus buu c-- cbb cbc cbf cbi cbk cbl cbo cbs cbu ccb ccc ccf cci cck ccl cco ccs ccu cfb cfc cff cfi cfk cfl cfo cfs cfu ci- cib cic cif cii cik cil cio cis ciu ckb ckc cki cko cks cl- clb clc clf cli clk cll clo cls clu co- cob coc cof coi cok col coo cos cou csb csc csf csi csk csl cso css csu cub cuc cuf cui cuk cul cuo cus cuu fbb fbc fbf fbi fbk fbl fbo fbs fbu fcb fcc fcf fci fck fcl fco fcs fcu ffc fff ffi ffk ffl ffo ffs ffu fib fic fif fii fik fil fis fiu fkb fkc fkf fki fkk fkl flb flc flf fli fll flo fls flu fob foc fof foi fok fol foo fos fou fsb fsc fsf fsi fsk fsl fso fss fsu fub fuf fui fuk ful fuo fus fuu i-f ibb ibc ibf ibi ibk ibl ibo ibs ibu icb icc icf ici ick icl ico ics icu ifb ifc iff ifi ifl ifo ifs ifu iib iic iif iii iil iio iis iiu ikb ikc ikf iki ikk ikl iko iks iku il- ilb ilc ilf ili ilk ill ilo ils ilu io- iob ioc iof ioi iol ioo ios iou is- isb isc isf isi isk isl iso iss isu iu- iub iuc iui ius kbb kbc kbf kbi kbk kbl kbo kbs kbu kcb kcc kci kck kcl kcs kcu kfc kff kfi kfo kfs kfu kib kic kif kii kik kil kio kis kiu kkb kkc kki kkk kkl kks kku kl- klb klc klf kli klo kls klu kob koc kof koi kok kol koo kos kou ksb ksc ksf ksi ksk ksl kso kss ksu kub kuc kui kuk kul kus kuu lbb lbc lbf lbi lbk lbl lbo lbs lbu lcb lcc lcf lci lck lcl lco lcs lcu lfb lfc lff lfi lfk lfl lfo lfs lfu lib lic lif lii lik lil lio lis liu lkb lkl lks llb llc llf lli llk lll llo lls llu lob loc lof loi lok lol loo los lou lsb lsc lsf lsi lsk lsl lso lss lsu lub luc luf lui luk lul luo lus luu o-i ob- obb obc obf obi obk obl obo obs obu oc- ocb occ ocf oci ock ocl oco ocs ocu of- ofb ofc off ofi ofl ofo ofs ofu oib oic oif oii oik oil oio ois oiu okb okc oki okk okl oko oks oku olb olc olf oli olk oll olo ols olu oo- oob ooc oof ooi ook ool ooo oos os- osb osc osf osi osk osl oso oss osu ou- ouc ouf oui ouk oul ouo ous sbb sbc sbf sbi sbk sbl sbo sbs sbu scb scc scf sci sck scl sco scs scu sfb sfc sff sfi sfk sfl sfo sfs sfu sib sic sif sii sik sil sio sis siu sk- skb skc skf ski skk skl sko sks sku slb slc slf sli slk sll slo sls slu sob soc sof soi sok sol soo sos sou ss- ssb ssc ssf ssi ssk ssl sso sss ssu sub suc suf sui suk sul suo sus suu ubb ubc ubf ubi ubk ubl ubo ubs ubu ucb ucc ucf uci uck ucl uco ucs ucu ufc uff ufi ufl ufo ufs ufu uib uic uif uii uil uio uis uiu ukb ukc ukf uki ukk ukl uku ulb ulc ulf uli ulk ull ulo uls ulu uob uoc uok uol uoo uos usb usc usf usi usk usl uso uss usu uuc uus uuu

-ous bbbb bbbs bbci bbfc bblb bbls bcbc bcbs bccc bcci bccl bccs bcfc bcis bcof bcos bcsc bcsl bcss bcuc bfcs bffl bffs bfsi bibb bibi bibl bibo bibs bicc bici bick bico bics biff bifi biis biko biku bili bilk bill bilo bils bilu bio- bioc bioi biol bios biou bis- bisc bisk bisl biso biss bisu blcu blfc blic blik blio blis blkb blls blob bloc blok bloo blou blss blub bluf blus bobb bobi bobo bobs bobu bock boco bocs bocu boff bofs bofu boi- boii boil bois boiu boki boko boks boku boli bolk boll bolo bols bolu boob booc boof book bool boos bosc bosi bosk boso boss bosu bouf bouk boul bous bsci bscs bsfc bsff bsfs bsic bslc bsos bssc bubb bubi bubo bubs bubu bucc buci buck buco bucs bucu bufc buff bufo buic buif buik buis buiu buki bukk buko buku bulb buli bulk bull buls bulu buol busc busi busk buss busu buus c-bo cbbc cbbs cbcc cbcl cbcs cbcu cbfb cbfc cbkl cbko cblb cblc cbol cbsc cbsi cbus ccbc cccb cccc cccf ccci cccl cccs cccu ccfc ccff ccfi ccfl ccic ccii ccil ccis cclc ccli ccls ccob ccoc ccsf ccsi ccsl ccss ccuc ccus cfbc cfbs cfcb cfcf cfcl cfco cfcs cffb cfls cfos cfsi cfsl cibc cibi cibo cicc cici cico cics cicu ciff cifl cifs ciii ciis ciko cili cilk cill cilo cils ciob cios cis- cisc cisk cisl ciss ciuc cius ckbc ckbi ckck ckcl ckco ckcs ckfi cklf ckob ckoc ckoi ckoo ckos cksb cksl ckso clib clic clif clii clik clio clis clob clof clok cloo clos clou clsc club cobb cobi cobo cobs cobu cock coco cocu cofc coff cofi cofs coif coil cois cok- coko col- colb coli colk coll colo cols colu coob coof