-er -ic -ol -up b-p b-u bbb bbc bbe bbf bbi bbk bbl bbo bbp bbq bbr bbs bbu bcb bcc bce bcf bci bck bcl bco bcp bcq bcr bcs bcu be- beb bec bee bef bei bek bel beo bep beq ber bes beu bfb bfc bfe bff bfi bfl bfo bfp bfq bfr bfs bfu bi- bib bic bie bif bii bik bil bio bip bir bis biu bkb bkc bke bkf bkk bkl bko bkp bkq bkr bks blb blc ble blf bli blk bll blo blp blq blr bls blu bob boc boe bof boi bok bol boo bop boq bor bos bou bpb bpc bpe bpf bpi bpl bpo bpp bpr bps bpu bqc bqe bqp brb bre brf bri brk brl bro brp brq brr brs bru bsb bsc bse bsf bsi bsk bsl bso bsp bsr bss bsu bub buc bue buf bui buk bul buo bup bur bus buu c-- cbb cbc cbe cbf cbi cbk cbl cbo cbp cbq cbr cbs cbu ccb ccc cce ccf cci cck ccl cco ccp ccr ccs ccu ce- ceb cec cee cef cei cek cel ceo cep ceq cer ces ceu cfb cfc cfe cff cfi cfk cfl cfo cfp cfq cfr cfs cfu ci- cib cic cie cif cii cik cil cio cip ciq cir cis ciu ckb ckc cki cko cks cl- clb clc cle clf cli clk cll clo clp clr cls clu co- cob coc coe cof coi cok col coo cop coq cor cos cou cpb cpc cpe cpf cpi cpk cpl cpo cpp cpq cpr cps cpu cqb cqc cqf cqi cql cqo cqs crb crc cre crf cri crk crl cro crp crq crr crs cru csb csc cse csf csi csk csl cso csp csq csr css csu cub cuc cue cuf cui cuk cul cuo cup cuq cur cus cuu ebb ebc ebe ebf ebi ebk ebl ebo ebp ebq ebr ebs ebu ec- ecb ecc ece ecf eci eck ecl eco ecq ecr ecs ecu eeb eec eee eef eek eel eeo eep eer ees ef- efb efc efe eff efi efl efo efp efr efs eib eic eie eif eii eik eil eio eip eir eis eiu ekb ekc eke ekf eki ekl eko ekp ekr eks eku elb elc ele elf eli elk ell elo elp elr els elu eo- eob eoc eoe eof eoi eok eol eoo eop eoq eor eos eou ep- epb epc epe epf epi epl epo epp epq epr eps epu eqe eqf eqp eqq eqs equ erb erc ere erf eri erk erl ero erp erq err ers eru es- esb esc ese esf esi esk esl eso esp esq esr ess esu eu- eub euc eue euf eui eul eup eur eus fbb fbc fbe fbf fbi fbk fbl fbo fbp fbr fbs fbu fcb fcc fce fcf fci fck fcl fco fcp fcr fcs fcu feb fec fee fef fei fek fel feo fep fer fes feu ffc ffe fff ffi ffk ffl ffo ffp ffr ffs ffu fib fic fie fif fii fik fil fip fiq fir fis fiu fkb fkc fkf fki fkk fkl fkp flb flc fle flf fli fll flo flp flq flr fls flu fob foc foe fof foi fok fol foo fop for fos fou fpb fpc fpe fpi fpk fpl fpo fpp fpr fps fpu fql frb frc fre frf fri frk frl fro frp frq frr frs fru fsb fsc fse fsf fsi fsk fsl fso fsp fsq fsr fss fsu fub fue fuf fui fuk ful fuo fup fur fus fuu i-f ibb ibc ibe ibf ibi ibk ibl ibo ibp ibr ibs ibu icb icc ice icf ici ick icl ico icp icq icr ics icu ie- iec iee ief iei iek iel iep ier ies ifb ifc ife iff ifi ifl ifo ifp ifr ifs ifu iib iic iie iif iii iil iio iip iir iis iiu ikb ikc ike ikf iki ikk ikl iko ikr iks iku il- ilb ilc ile ilf ili ilk ill ilo ilp ilq ilr ils ilu io- iob ioc ioe iof ioi iol ioo iop ior ios iou ipb ipc ipe ipf ipi ipl ipo ipp ipr ips ipu iqc iqe iqs iqu ir- irb irc ire irf iri irk irl iro irp irq irr irs iru is- isb isc ise isf isi isk isl iso isp isq isr iss isu iu- iub iuc iue iui iup iur ius kbb kbc kbe kbf kbi kbk kbl kbo kbp kbr kbs kbu kcb kcc kce kci kck kcl kcp kcr kcs kcu ke- keb kec kee kef kei kek kel keo kep ker kes kfc kff kfi kfo kfs kfu kib kic kie kif kii kik kil kio kip kir kis kiu kkb kkc kke kki kkk kkl kkp kkr kks kku kl- klb klc klf kli klo klq klr kls klu kob koc koe kof koi kok kol koo kop kor kos kou kpc kpe kpf kpi kpk kpl kpo kpp kpq kpr kps kpu kql krc krf kri krk krl kro krp krr krs kru ksb ksc kse ksf ksi ksk ksl kso ksp ksr kss ksu kub kuc kue kui kuk kul kup kur kus kuu l-p lbb lbc lbe lbf lbi lbk lbl lbo lbp lbr lbs lbu lcb lcc lce lcf lci lck lcl lco lcp lcq lcr lcs lcu leb lec lee lef lei lek lel leo lep leq ler les leu lfb lfc lfe lff lfi lfk lfl lfo lfp lfr lfs lfu lib lic lie lif lii lik lil lio lip liq lir lis liu lkb lkl lkp lkr lks llb llc lle llf lli llk lll llo llp llq llr lls llu lob loc loe lof loi lok lol loo lop loq lor los lou lpb lpc lpe lpf lpi lpk lpl lpo lpp lpr lps lpu lqr lrb lrc lrf lri lrk lro lrp lrr lrs lru