-er -ic b-u bbb bbc bbe bbi bbk bbl bbr bbs bbt bbu bcb bcc bce bci bck bcl bcr bcs bct bcu be- beb bec bee bei bek bel ber bes bet beu bi- bib bic bie bii bik bil bir bis bit biu bkb bkc bke bkk bkl bkr bks bkt blb blc ble bli blk bll blr bls blt blu brb bre bri brk brl brr brs brt bru bsb bsc bse bsi bsk bsl bsr bss bst bsu btb btc bte bti btk btl btr bts btt btu bub buc bue bui buk bul bur bus but buu c-- cbb cbc cbe cbi cbk cbl cbr cbs cbt cbu ccb ccc cce cci cck ccl ccr ccs cct ccu ce- ceb cec cee cei cek cel cer ces cet ceu ci- cib cic cie cii cik cil cir cis cit ciu ckb ckc cki cks ckt cl- clb clc cle cli clk cll clr cls clt clu crb crc cre cri crk crl crr crs crt cru csb csc cse csi csk csl csr css cst csu ctb ctc cte cti ctk ctl ctr cts ctt ctu cub cuc cue cui cuk cul cur cus cut cuu ebb ebc ebe ebi ebk ebl ebr ebs ebt ebu ec- ecb ecc ece eci eck ecl ecr ecs ect ecu eeb eec eee eek eel eer ees eet eib eic eie eii eik eil eir eis eit eiu ekb ekc eke eki ekl ekr eks ekt eku elb elc ele eli elk ell elr els elt elu erb erc ere eri erk erl err ers ert eru es- esb esc ese esi esk esl esr ess est esu etb etc ete eti etk etl etr ets ett etu eu- eub euc eue eui eul eur eus eut ibb ibc ibe ibi ibk ibl ibr ibs ibt ibu icb icc ice ici ick icl icr ics ict icu ie- iec iee iei iek iel ier ies iet iib iic iie iii iil iir iis iit iiu ikb ikc ike iki ikk ikl ikr iks ikt iku il- ilb ilc ile ili ilk ill ilr ils ilt ilu ir- irb irc ire iri irk irl irr irs irt iru is- isb isc ise isi isk isl isr iss ist isu itb itc ite iti itk itl its itt itu iu- iub iuc iue iui iur ius iut k-t kbb kbc kbe kbi kbk kbl kbr kbs kbu kcb kcc kce kci kck kcl kcr kcs kct kcu ke- keb kec kee kei kek kel ker kes ket kib kic kie kii kik kil kir kis kit kiu kkb kkc kke kki kkk kkl kkr kks kkt kku kl- klb klc kli klr kls klt klu krc kri krk krl krr krs krt kru ksb ksc kse ksi ksk ksl ksr kss kst ksu ktb ktc kte ktk ktl ktr kts ktt ktu kub kuc kue kui kuk kul kur kus kut kuu lbb lbc lbe lbi lbk lbl lbr lbs lbt lbu lcb lcc lce lci lck lcl lcr lcs lct lcu leb lec lee lei lek lel ler les let leu lib lic lie lii lik lil lir lis lit liu lkb lkl lkr lks lkt llb llc lle lli llk lll llr lls llt llu lrb lrc lri lrk lrr lrs lrt lru lsb lsc lse lsi lsk lsl lsr lss lst lsu ltb ltc lte lti ltk ltl ltr lts ltt ltu lub luc lue lui luk lul lur lus lut luu rbb rbc rbe rbi rbk rbl rbr rbs rbt rbu rcb rcc rce rci rcl rcr rcs rct rcu re- reb rec ree rei rek rel rer res ret reu rib ric rie rii rik ril rir ris rit rkb rkc rke rkk rks rkt rku rlc rle rli rll rlr rls rlt rlu rrb rrc rri rrk rrl rrr rrs rrt rru rsb rsc rse rsi rsk rsl rsr rss rst rsu rtb rtc rte rti rtk rtl rtr rts rtt rtu rub ruc rue rui ruk rur rus rut ruu sbb sbc sbe sbi sbk sbl sbr sbs sbt sbu scb scc sce sci sck scl scr scs sct scu se- seb sec see sei sek sel ser ses set seu sib sic sie sii sik sil sir sis sit siu sk- skb skc ske ski skk skl skr sks skt sku slb slc sle sli slk sll slr sls slt slu sr- srb src sre sri srk srl srr srs srt ss- ssb ssc sse ssi ssk ssl ssr sss sst ssu stb stc ste sti stk stl str sts stt stu sub suc sue sui suk sul sur sus sut suu tbb tbc tbe tbi tbk tbl tbr tbs tbt tbu tcb tcc tce tci tck tcl tcr tcs tct tcu te- teb tec tee tei tek tel ter tes tet teu tib tic tie tii tik til tir tis tit tiu tkb tkc tke tkk tkl tkr tks tkt tlc tle tli tlk tll tlr tls tlt tlu trb trc tre tri trk trl trr trs trt tru tsb tsc tse tsi tsk tsl tsr tss tst tsu ttb ttc tte tti ttk ttl ttr tts ttt ttu tub tuc tue tui tuk tul tur tus tut tuu ubb ubc ube ubi ubk ubl ubr ubs ubt ubu ucb ucc uce uci uck ucl ucr ucs uct ucu ueb uec uee uei uel uer ues uet uib uic uie uii uil uir uis uit uiu ukb ukc uke uki ukk ukl ukr uku ulb ulc ule uli ulk ull ulr uls ult ulu ur- urb urc ure uri urk url urr urs urt uru usb usc use usi usk usl usr uss ust usu utb utc ute uti utk utl utr uts utt utu uuc uue uur uus uut uuu

bbbb bbbs bbci bbeb bbet bblb bbls bbrc bcbc bcbs bccc bcci bccl bccs bcec bcer bces bcet bcie bcis bcit bcrs bcru bcsc bcsl bcss bctc bcts bcuc bebb