-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aak aam aap aar aas aat ab- aba abb abc abe abi abk abm abp abr abs abt ac- aca acb acc ace aci ack acm acp acr acs act aea aeb aec aee aei aek aem aep aer aes aet ai- aia aib aic aie aii aik aim aip air ais ait aka akb akc ake aki akk akm akp akr aks ama amb amc ame ami amk amm amp amr ams amt ap- apa apb apc ape api apk apm app apr aps apt ar- ara arb arc are ari ark arm arp arr ars art as- asa asb asc ase asi ask asm asp asr ass ast at- ata atb atc ate ati atm atp atr ats att b-p baa bab bac bae bai bak bam bap bar bas bat bba bbb bbc bbe bbi bbk bbm bbp bbr bbs bbt bca bcb bcc bce bci bck bcm bcp bcr bcs bct be- bea beb bec bee bei bek bem bep ber bes bet bi- bia bib bic bie bii bik bim bip bir bis bit bka bkb bkc bke bkk bkm bkp bkr bks bkt bma bmb bmc bme bmi bmk bmm bmp bmr bms bmt bpa bpb bpc bpe bpi bpm bpp bpr bps bpt bra brb bre bri brk brm brp brr brs brt bsa bsb bsc bse bsi bsk bsm bsp bsr bss bst bta btb btc bte bti btk btm btp btr bts btt c-- caa cab cac cae cai cak cam cap car cas cat cba cbb cbc cbe cbi cbk cbm cbp cbr cbs cbt cca ccb ccc cce cci cck ccm ccp ccr ccs cct ce- cea ceb cec cee cei cek cem cep cer ces cet ci- cia cib cic cie cii cik cim cip cir cis cit cka ckb ckc cki ckm cks ckt cma cmb cmc cme cmi cmk cmm cmp cmr cms cmt cpa cpb cpc cpe cpi cpk cpm cpp cpr cps cpt cra crb crc cre cri crk crm crp crr crs crt csa csb csc cse csi csk csm csp csr css cst cta ctb ctc cte cti ctk ctm ctp ctr cts ctt eaa eab eac eae eai eak eam eap ear eas eat eba ebb ebc ebe ebi ebk ebm ebp ebr ebs ebt ec- eca ecb ecc ece eci eck ecm ecr ecs ect eea eeb eec eee eek eem eep eer ees eet eia eib eic eie eii eik eim eip eir eis eit eka ekb ekc eke eki ekp ekr eks ekt em- ema emb emc eme emi emk emm emp emr ems emt ep- epa epb epc epe epi epm epp epr eps ept era erb erc ere eri erk erm erp err ers ert es- esa esb esc ese esi esk esm esp esr ess est eta etb etc ete eti etk etm etp etr ets ett ia- iaa iab iac iae iai iam iap iar ias iat iba ibb ibc ibe ibi ibk ibm ibp ibr ibs ibt ica icb icc ice ici ick icm icp icr ics ict ie- iea iec iee iei iek iem iep ier ies iet iia iib iic iie iii iim iip iir iis iit ika ikb ikc ike iki ikk ikr iks ikt im- ima imb imc ime imi imm imp ims imt ipa ipb ipc ipe ipi ipm ipp ipr ips ipt ir- ira irb irc ire iri irk irm irp irr irs irt is- isa isb isc ise isi isk ism isp isr iss ist ita itb itc ite iti itk itm itp its itt k-t ka- kaa kab kac kae kai kak kam kap kar kas kat kba kbb kbc kbe kbi kbk kbm kbp kbr kbs kca kcb kcc kce kci kck kcm kcp kcr kcs kct ke- kea keb kec kee kei kek kem kep ker kes ket kia kib kic kie kii kik kim kip kir kis kit kkb kkc kke kki kkk kkm kkp kkr kks kkt kma kmb kmc kme kmi kmk kmm kmp kms kmt kpa kpc kpe kpi kpk kpm kpp kpr kps kpt kra krc kri krk krp krr krs krt ksa ksb ksc kse ksi ksk ksm ksp ksr kss kst kta ktb ktc kte ktk ktm ktp ktr kts ktt m-r maa mab mac mae mai mak mam map mar mas mat mba mbb mbc mbe mbi mbk mbm mbp mbr mbs mbt mc- mca mcb mcc mce mci mck mcm mcp mcr mcs mct mea meb mec mee mei mek mem mep mer mes met mi- mia mib mic mie mii mik mim mip mir mis mit mka mkb mkc mke mkk mkm mkp mkr mks mkt mma mmb mmc mme mmi mmk mmm mmp mmr mms mmt mpa mpb mpc mpe mpi mpk mpm mpp mpr mps mpt mra mrb mrc mre mri mrk mrm mrp mrr mrs mrt msa msb msc mse msi msk msm msp msr mss mst mta mtb mtc mte mti mtk mtm mtp mtr mts mtt p-p paa pab pac pae pai pak pam pap par pas pat pba pbb pbc pbe pbi pbk pbm pbp pbr pbs pbt pca pcb pcc pce pci pck pcm pcp pcr pcs pct pea peb pec pee pei pek pem pep per pes pet pia pib pic pie pii pik pim pip pir pis pit pka pkb pkc pke pki pkm pkp pkr pks pkt pma pmb pmc pme pmi pmk pmm pmp pmr pms pmt ppa ppb ppc ppe ppi ppk ppm ppp ppr pps ppt pra prb prc pre pri prk prm prp prr prs prt ps- psa psb psc pse psi psk psm psp psr pss pst pt- pta ptb ptc pte pti ptk ptm ptp ptr pts ptt ra- raa rab rac rae rai rak ram rap rar ras rat rba rbb rbc rbe rbi rbk rbm rbp rbr rbs rbt rca rcb rcc rce