a-a a-b a-i a-t aaa aab aai aam aan aao aap aar aat ab- aba abb abi abm abn abo abp abr abt ai- aia aib aii aim ain aio aip air ait ama amb ami amm amn amo amp amr amt an- ana anb ani anm ann ano anp anr ant aoa aob aoi aom aon aoo aop aor aot ap- apa apb api apm apn apo app apr apt ar- ara arb ari arm arn aro arp arr art at- ata atb ati atm atn ato atp atr att b-p baa bab bai bam ban bao bap bar bat bba bbb bbi bbm bbn bbo bbp bbr bbt bi- bia bib bii bim bin bio bip bir bit bma bmb bmi bmm bmn bmo bmp bmr bmt bna bnb bni bnn bno bnp bnr bnt boa bob boi bom bon boo bop bor bot bpa bpb bpi bpm bpn bpo bpp bpr bpt bra brb bri brm brn bro brp brr brt bta btb bti btm btn bto btp btr btt ia- iaa iab iai iam ian iao iap iar iat iba ibb ibi ibm ibn ibo ibp ibr ibt iia iib iii iim iin iio iip iir iit im- ima imb imi imm imn imo imp imt in- ina inb ini inm inn ino inp inr int io- ioa iob ioi iom ion ioo iop ior iot ipa ipb ipi ipm ipn ipo ipp ipr ipt ir- ira irb iri irm irn iro irp irr irt ita itb iti itm itn ito itp itt m-o m-r maa mab mai mam man mao map mar mat mba mbb mbi mbm mbo mbp mbr mbt mi- mia mib mii mim min mio mip mir mit mma mmb mmi mmm mmn mmo mmp mmr mmt mna mnb mni mnm mnn mno mnp mnr mnt moa mob moi mom mon moo mop mor mot mpa mpb mpi mpm mpn mpo mpp mpr mpt mra mrb mri mrm mrn mro mrp mrr mrt mta mtb mti mtm mtn mto mtp mtr mtt n-i naa nab nai nam nan nao nap nar nat nba nbb nbi nbm nbn nbo nbp nbr nbt nia nib nii nim nin nio nip nir nit nma nmb nmi nmm nmn nmo nmp nmr nmt nna nnb nni nnm nnn nno nnp nnt no- noa nob noi nom non noo nop nor not npa npb npi npm npn npo npp npr npt nra nrb nri nrm nrn nro nrp nrr nrt nta ntb nti ntm ntn nto ntp ntr ntt o-i oaa oab oai oam oan oao oap oar oat ob- oba obb obi obm obn obo obp obr obt oia oib oii oim oin oio oip oir oit om- oma omb omi omm omn omo omp omr omt on- ona onb oni onn ono onp onr ont oo- ooa oob ooi oom oon ooo oop oor oot op- opa opb opi opm opn opo opp opr opt or- ora orb ori orm orn oro orp orr ort ot- ota otb oti otm otn oto otp otr ott p-p paa pab pai pam pan pao pap par pat pba pbb pbi pbm pbn pbo pbp pbr pbt pia pib pii pim pin pio pip pir pit pma pmb pmi pmm pmn pmo pmp pmr pmt pn- pna pnb pni pnm pnn pno pnp pnr pnt poa pob poi pom pon poo pop por pot ppa ppb ppi ppm ppn ppo ppp ppr ppt pra prb pri prm prn pro prp prr prt pt- pta ptb pti ptm ptn pto ptp ptr ptt ra- raa rab rai ram ran rao rap rar rat rba rbb rbi rbm rbn rbo rbp rbr rbt ria rib rii rim rin rio rip rir rit rma rmb rmi rmm rmn rmo rmp rmr rmt rna rnb rni rnm rnn rno rnp rnr rnt roa rob roi rom ron roo rop ror rot rpa rpb rpi rpm rpn rpo rpp rpr rpt rra rrb rri rrm rrn rrp rrr rrt rta rtb rti rtm rtn rto rtp rtr rtt taa tab tai tam tan tao tap tar tat tba tbb tbi tbm tbn tbo tbp tbr tbt tia tib tii tim tin tio tip tir tit tma tmb tmi tmm tmn tmo tmp tmr tmt tna tnb tni tnm tnn tno tnp tnr tnt to- toa tob toi tom ton too top tor tot tpa tpb tpi tpm tpn tpo tpp tpr tpt tra trb tri trm trn tro trp trr trt tta ttb tti ttm ttn tto ttp ttr ttt