-er -ic -up b-p b-u bbb bbc bbe bbi bbm bbp bbr bbs bbt bbu bcb bcc bce bci bcm bcp bcr bcs bct bcu be- beb bec bee bei bem bep ber bes bet beu bi- bib bic bie bii bim bip bir bis bit biu bmb bmc bme bmi bmm bmp bmr bms bmt bmu bpb bpc bpe bpi bpm bpp bpr bps bpt bpu brb bre bri brm brp brr brs brt bru bsb bsc bse bsi bsm bsp bsr bss bst bsu btb btc bte bti btm btp btr bts btt btu bub buc bue bui bum bup bur bus but buu c-- cbb cbc cbe cbi cbm cbp cbr cbs cbt cbu ccb ccc cce cci ccm ccp ccr ccs cct ccu ce- ceb cec cee cei cem cep cer ces cet ceu ci- cib cic cie cii cim cip cir cis cit ciu cmb cmc cme cmi cmm cmp cmr cms cmt cmu cpb cpc cpe cpi cpm cpp cpr cps cpt cpu crb crc cre cri crm crp crr crs crt cru csb csc cse csi csm csp csr css cst csu ctb ctc cte cti ctm ctp ctr cts ctt ctu cub cuc cue cui cum cup cur cus cut cuu ebb ebc ebe ebi ebm ebp ebr ebs ebt ebu ec- ecb ecc ece eci ecm ecr ecs ect ecu eeb eec eee eem eep eer ees eet eib eic eie eii eim eip eir eis eit eiu em- emb emc eme emi emm emp emr ems emt emu ep- epb epc epe epi epm epp epr eps ept epu erb erc ere eri erm erp err ers ert eru es- esb esc ese esi esm esp esr ess est esu etb etc ete eti etm etp etr ets ett etu eu- eub euc eue eui eup eur eus eut ibb ibc ibe ibi ibm ibp ibr ibs ibt ibu icb icc ice ici icm icp icr ics ict icu ie- iec iee iei iem iep ier ies iet iib iic iie iii iim iip iir iis iit iiu im- imb imc ime imi imm imp ims imt imu ipb ipc ipe ipi ipm ipp ipr ips ipt ipu ir- irb irc ire iri irm irp irr irs irt iru is- isb isc ise isi ism isp isr iss ist isu itb itc ite iti itm itp its itt itu iu- iub iuc iue iui ium iup iur ius iut m-r mbb mbc mbe mbi mbm mbp mbr mbs mbt mbu mc- mcb mcc mce mci mcm mcp mcr mcs mct mcu meb mec mee mei mem mep mer mes met meu mi- mib mic mie mii mim mip mir mis mit miu mmb mmc mme mmi mmm mmp mmr mms mmt mmu mpb mpc mpe mpi mpm mpp mpr mps mpt mpu mrb mrc mre mri mrm mrp mrr mrs mrt mru msb msc mse msi msm msp msr mss mst msu mtb mtc mte mti mtm mtp mtr mts mtt mtu mub muc mue mui mum mup mur mus mut muu p-p pbb pbc pbe pbi pbm pbp pbr pbs pbt pbu pcb pcc pce pci pcm pcp pcr pcs pct pcu peb pec pee pei pem pep per pes pet peu pib pic pie pii pim pip pir pis pit piu pmb pmc pme pmi pmm pmp pmr pms pmt pmu ppb ppc ppe ppi ppm ppp ppr pps ppt ppu prb prc pre pri prm prp prr prs prt pru ps- psb psc pse psi psm psp psr pss pst psu pt- ptb ptc pte pti ptm ptp ptr pts ptt ptu pub puc pue pui pum pup pur pus put puu rbb rbc rbe rbi rbm rbp rbr rbs rbt rbu rcb rcc rce rci rcm rcp rcr rcs rct rcu re- reb rec ree rei rem rep rer res ret reu rib ric rie rii rim rip rir ris rit rmb rmc rme rmi rmm rmp rmr rms rmt rpb rpc rpe rpi rpm rpp rpr rps rpt rpu rrb rrc rri rrm rrp rrr rrs rrt rru rsb rsc rse rsi rsm rsp rsr rss rst rsu rtb rtc rte rti rtm rtp rtr rts rtt rtu rub ruc rue rui rum rup rur rus rut ruu sbb sbc sbe sbi sbm sbp sbr sbs sbt sbu scb scc sce sci scm scp scr scs sct scu se- seb sec see sei sem sep ser ses set seu sib sic sie sii sim sip sir sis sit siu smb smc sme smi smm smp smr sms smt smu spb spc spe spi spm spp spr sps spt spu sr- srb src sre sri srm srp srr srs srt ss- ssb ssc sse ssi ssm ssp ssr sss sst ssu stb stc ste sti stm stp str sts stt stu sub suc sue sui sum sup sur sus sut suu tbb tbc tbe tbi tbm tbp tbr tbs tbt tbu tcb tcc tce tci tcm tcp tcr tcs tct tcu te- teb tec tee tei tem tep ter tes tet teu tib tic tie tii tim tip tir tis tit tiu tmb tmc tme tmi tmm tmp tmr tms tmt tmu tpb tpc tpe tpi tpm tpp tpr tps tpt tpu trb trc tre tri trm trp trr trs trt tru tsb tsc tse tsi tsm tsp tsr tss tst tsu ttb ttc tte tti ttm ttp ttr tts ttt ttu tub tuc tue tui tum tup tur tus tut tuu ubb ubc ube ubi ubp ubr ubs ubt ubu ucb ucc uce uci ucm ucp ucr ucs uct ucu ueb uec uee uei uem uep uer ues uet uib uic uie uii uim uip uir uis uit uiu um- umb umc ume umi umm ump umr ums umt umu up- upb upc upe upi upm upp upr ups upt upu ur- urb urc ure uri urm urp urr urs urt uru usb usc use usi usm usp usr uss ust usu utb utc ute