-ic -up b-p b-u bbb bbc bbe bbi bbk bbp bbs bbu bcb bcc bce bci bck bcp bcs bcu be- beb bec bee bei bek bep bes beu bi- bib bic bie bii bik bip bis biu bkb bkc bke bkk bkp bks bpb bpc bpe bpi bpp bps bpu bsb bsc bse bsi bsk bsp bss bsu bub buc bue bui buk bup bus buu c-- cbb cbc cbe cbi cbk cbp cbs cbu ccb ccc cce cci cck ccp ccs ccu ce- ceb cec cee cei cek cep ces ceu ci- cib cic cie cii cik cip cis ciu ckb ckc cki cks cpb cpc cpe cpi cpk cpp cps cpu csb csc cse csi csk csp css csu cub cuc cue cui cuk cup cus cuu ebb ebc ebe ebi ebk ebp ebs ebu ec- ecb ecc ece eci eck ecs ecu eeb eec eee eek eep ees eib eic eie eii eik eip eis eiu ekb ekc eke eki ekp eks eku ep- epb epc epe epi epp eps epu es- esb esc ese esi esk esp ess esu eu- eub euc eue eui eup eus ibb ibc ibe ibi ibk ibp ibs ibu icb icc ice ici ick icp ics icu ie- iec iee iei iek iep ies iib iic iie iii iip iis iiu ikb ikc ike iki ikk iks iku ipb ipc ipe ipi ipp ips ipu is- isb isc ise isi isk isp iss isu iu- iub iuc iue iui iup ius kbb kbc kbe kbi kbk kbp kbs kbu kcb kcc kce kci kck kcp kcs kcu ke- keb kec kee kei kek kep kes kib kic kie kii kik kip kis kiu kkb kkc kke kki kkk kkp kks kku kpc kpe kpi kpk kpp kps kpu ksb ksc kse ksi ksk ksp kss ksu kub kuc kue kui kuk kup kus kuu p-p pbb pbc pbe pbi pbk pbp pbs pbu pcb pcc pce pci pck pcp pcs pcu peb pec pee pei pek pep pes peu pib pic pie pii pik pip pis piu pkb pkc pke pki pkp pks pku ppb ppc ppe ppi ppk ppp pps ppu ps- psb psc pse psi psk psp pss psu pub puc pue pui puk pup pus puu sbb sbc sbe sbi sbk sbp sbs sbu scb scc sce sci sck scp scs scu se- seb sec see sei sek sep ses seu sib sic sie sii sik sip sis siu sk- skb skc ske ski skk skp sks sku spb spc spe spi spk spp sps spu ss- ssb ssc sse ssi ssk ssp sss ssu sub suc sue sui suk sup sus suu ubb ubc ube ubi ubk ubp ubs ubu ucb ucc uce uci uck ucp ucs ucu ueb uec uee uei uep ues uib uic uie uii uip uis uiu ukb ukc uke uki ukk ukp uku up- upb upc upe upi upk upp ups upu usb usc use usi usk usp uss usu uuc uue uus uuu

bbbb bbbs bbci bbeb bcbc bcbp bcbs bccc bcci bccs bcec bces bcie bcis bcpp bcps bcsc bcss bcuc bcup bebb bebe bebi beci beck becs becu beeb beek beep bees beic beik beis beke beki beks bes- bese besk bess beuk bibb bibe bibi bibs bicc bice bici bick bics bieb bies bieu biis bike biku bipp bips bipu bis- bisc bise bisk bisp biss bisu bksp bpcp bpsu bsci bscp bscs bseb bsec bsee bses bsic bspp bssc bsse bsup bubb bube bubi bubs bubu bucc buce buci buck bucs bucu bueu buic buie buik buis buiu buke buki bukk buku bupc bups busc buse busi busk buss busu buus cbbc cbbs cbcc cbce cbcp cbcs cbcu cbec cbee cbpc cbpp cbsc cbse cbsi cbus ccbc cccb cccc ccci cccp cccs cccu ccee ccic ccii ccip ccis ccpe ccpp ccps ccsi ccsp ccss ccuc ccup ccus cebp cebs cebu cec- cece ceci cecp cecs ceeb ceec cees ceip ceke cepc cepe cepp ceps cesc cese cesi cesp cess ceui cibc cibe cibi cicc cici cics cicu ciee cies ciii ciis cipp cips cis- cisc cise cisk cisp ciss ciuc ciup cius ckbc ckbe ckbi ckck ckcs ckpc cksb cpbc cpce cpcs cpcu cpeb cpep cpic cpps cpsc cpsk cpsu cpus cscb cscc csce csci cscs csec csee csep csib csik csis csks cspb cspc cspe cspi csps csse csup csus cub- cubb cube cubi cubs cucc cuce cuci cuck cuek cues cui- cuis cuk- cuke cupe cupp cups cusb cusk cusp cuss cusu ebbc ebbs ebcc ebes ebic ebis ebus ecbc ecbe eccb eccc ecce ecci eces ecib ecip ecis ecks ecpp ecsc ecse ecsp ecss ecsu ecus eecs eeee eees eeke eeks eeps eese eesi eesk eick eics eiec eiei eies eike eiki eiks eise eisk eiss ekeb ekek ekes ekis ekki ekpe eksi epcc epci epec epee epes epi- epic epie epik epip epis eppc eppp epps epsc epsi epsp epss epub epus esbs escb esce esci escs escu esee esek eses esie esik esis eske esks esku espc espe espi espp esps esse essi essp essu esui esus eubc eubi euse i-be ibcs ibec ibes ibie ibis ibss ibus icbc icbp icbs iccb iccc icci iccp iccs iccu icec icee ices icis icke icks icpc icps icsb icsc icse icsi icsp icss icub icue icup icus iecc ieie iesc iesi iesu iies iiie iiii iiis iisc iisi iisp iisu iiuc ikee ikes ikki iksu ikue ipbk ipcc ipce ipcs ipec ipek ipes ipie ippc ipsc ipse ipsi ipsp ipss ipus isbe iscc isci iscp iscs iscu iseb isec isee isep ises isic isie isis isku ispc ispe isps issc isse issi issp isss issu isup isus iucc iuce iuiu iupp iuse iuss k-ci kbbb kbbc kbbe kbbi kbbk kbbs kbbu kbcb kbce kbci kbck kbcs kbcu kbeb kbec kbee kbek kbes kbib kbic kbie kbik kbis kbiu kbkb kbkk kbpc kbpe kbpi kbpk kbps kbpu kbsb kbsi kbsk kbss kbsu kbub kbuc