-er a-a a-b a-i a-t aaa aab aae aaf aai aak aam aap aar aat ab- aba abb abe abf abi abk abm abp abr abt aea aeb aee aef aei aek aem aep aer aet af- afa afb afe aff afi afk afm afp afr aft ai- aia aib aie aif aii aik aim aip air ait aka akb ake aki akk akm akp akr ama amb ame amf ami amk amm amp amr amt ap- apa apb ape apf api apk apm app apr apt ar- ara arb are arf ari ark arm arp arr art at- ata atb ate atf ati atm atp atr att b-p baa bab bae baf bai bak bam bap bar bat bba bbb bbe bbf bbi bbk bbm bbp bbr bbt be- bea beb bee bef bei bek bem bep ber bet bfa bfb bfe bff bfi bfm bfp bfr bft bi- bia bib bie bif bii bik bim bip bir bit bka bkb bke bkf bkk bkm bkp bkr bkt bma bmb bme bmf bmi bmk bmm bmp bmr bmt bpa bpb bpe bpf bpi bpm bpp bpr bpt bra brb bre brf bri brk brm brp brr brt bta btb bte btf bti btk btm btp btr btt eaa eab eae eaf eai eak eam eap ear eat eba ebb ebe ebf ebi ebk ebm ebp ebr ebt eea eeb eee eef eek eem eep eer eet ef- efa efb efe eff efi efm efp efr eft eia eib eie eif eii eik eim eip eir eit eka ekb eke ekf eki ekp ekr ekt em- ema emb eme emf emi emk emm emp emr emt ep- epa epb epe epf epi epm epp epr ept era erb ere erf eri erk erm erp err ert eta etb ete etf eti etk etm etp etr ett faa fab fae faf fai fak fam fap far fat fba fbb fbe fbf fbi fbk fbm fbp fbr fbt fea feb fee fef fei fek fem fep fer fet ffa ffe fff ffi ffk ffm ffp ffr fft fia fib fie fif fii fik fim fip fir fit fka fkb fkf fki fkk fkm fkp fkt fma fmb fme fmf fmi fmm fmp fmr fmt fpa fpb fpe fpi fpk fpm fpp fpr fpt fra frb fre frf fri frk frm frp frr frt fta ftb fte ftf fti ftk ftm ftp ftr ftt i-f ia- iaa iab iae iaf iai iam iap iar iat iba ibb ibe ibf ibi ibk ibm ibp ibr ibt ie- iea iee ief iei iek iem iep ier iet ifa ifb ife iff ifi ifm ifp ifr ift iia iib iie iif iii iim iip iir iit ika ikb ike ikf iki ikk ikr ikt im- ima imb ime imf imi imm imp imt ipa ipb ipe ipf ipi ipm ipp ipr ipt ir- ira irb ire irf iri irk irm irp irr irt ita itb ite itf iti itk itm itp itt k-t ka- kaa kab kae kaf kai kak kam kap kar kat kba kbb kbe kbf kbi kbk kbm kbp kbr ke- kea keb kee kef kei kek kem kep ker ket kfa kff kfi kfm kia kib kie kif kii kik kim kip kir kit kkb kke kki kkk kkm kkp kkr kkt kma kmb kme kmf kmi kmk kmm kmp kmt kpa kpe kpf kpi kpk kpm kpp kpr kpt kra krf kri krk krp krr krt kta ktb kte ktf ktk ktm ktp ktr ktt m-f m-r maa mab mae maf mai mak mam map mar mat mba mbb mbe mbf mbi mbk mbm mbp mbr mbt mea meb mee mef mei mek mem mep mer met mfa mfb mfe mff mfi mfm mfp mfr mft mi- mia mib mie mif mii mik mim mip mir mit mka mkb mke mkk mkm mkp mkr mkt mma mmb mme mmf mmi mmk mmm mmp mmr mmt mpa mpb mpe mpf mpi mpk mpm mpp mpr mpt mra mrb mre mrf mri mrk mrm mrp mrr mrt mta mtb mte mtf mti mtk mtm mtp mtr mtt p-p paa pab pae paf pai pak pam pap par pat pba pbb pbe pbf pbi pbk pbm pbp pbr pbt pea peb pee pef pei pek pem pep per pet pfa pfb pfe pff pfi pfk pfm pfp pfr pft pia pib pie pif pii pik pim pip pir pit pka pkb pke pkf pki pkm pkp pkr pkt pma pmb pme pmf pmi pmk pmm pmp pmr pmt ppa ppb ppe ppf ppi ppk ppm ppp ppr ppt pra prb pre prf pri prk prm prp prr prt pt- pta ptb pte ptf pti ptk ptm ptp ptr ptt ra- raa rab rae raf rai rak ram rap rar rat rba rbb rbe rbf rbi rbk rbm rbp rbr rbt re- rea reb ree ref rei rek rem rep rer ret rfa rfb rfe rff rfi rfk rfm rfp rfr rft ria rib rie rif rii rik rim rip rir rit rkb rke rkf rkk rkm rkp rkt rma rmb rme rmf rmi rmm rmp rmr rmt rpa rpb rpe rpf rpi rpk rpm rpp rpr rpt rra rrb rrf rri rrk rrm rrp rrr rrt rta rtb rte rtf rti rtk rtm rtp rtr rtt taa tab tae taf tai tak tam tap tar tat tba tbb tbe tbf tbi tbk tbm tbp tbr tbt te- tea teb tee tef tei tek tem tep ter tet tfa tfb tfe tff tfi tfk tfm tfp tfr tft tia tib tie tif tii tik tim tip tir tit tka tkb tke tkk tkm tkp tkr tkt tma tmb tme tmf tmi tmk tmm tmp tmr tmt tpa tpb tpe tpf tpi tpk tpm tpp tpr tpt tra trb tre trf tri trk trm trp trr trt tta ttb tte ttf tti ttk ttm ttp ttr ttt

a-ak a-be a-ii aaaa aaab aaae aaaf aaai aaam aaap aaar aaba aabb aabi aabm aabp aabt aaea aaem