a-a a-b a-i a-t aaa aab aai aam aan aao aap aat ab- aba abb abi abm abn abo abp abt ai- aia aib aii aim ain aio aip ait ama amb ami amm amn amo amp amt an- ana anb ani anm ann ano anp ant aoa aob aoi aom aon aoo aop aot ap- apa apb api apm apn apo app apt at- ata atb ati atm atn ato atp att b-p baa bab bai bam ban bao bap bat bba bbb bbi bbm bbn bbo bbp bbt bi- bia bib bii bim bin bio bip bit bma bmb bmi bmm bmn bmo bmp bmt bna bnb bni bnn bno bnp bnt boa bob boi bom bon boo bop bot bpa bpb bpi bpm bpn bpo bpp bpt bta btb bti btm btn bto btp btt ia- iaa iab iai iam ian iao iap iat iba ibb ibi ibm ibn ibo ibp ibt iia iib iii iim iin iio iip iit im- ima imb imi imm imn imo imp imt in- ina inb ini inm inn ino inp int io- ioa iob ioi iom ion ioo iop iot ipa ipb ipi ipm ipn ipo ipp ipt ita itb iti itm itn ito itp itt m-o maa mab mai mam man mao map mat mba mbb mbi mbm mbo mbp mbt mi- mia mib mii mim min mio mip mit mma mmb mmi mmm mmn mmo mmp mmt mna mnb mni mnm mnn mno mnp mnt moa mob moi mom mon moo mop mot mpa mpb mpi mpm mpn mpo mpp mpt mta mtb mti mtm mtn mto mtp mtt n-i naa nab nai nam nan nao nap nat nba nbb nbi nbm nbn nbo nbp nbt nia nib nii nim nin nio nip nit nma nmb nmi nmm nmn nmo nmp nmt nna nnb nni nnm nnn nno nnp nnt no- noa nob noi nom non noo nop not npa npb npi npm npn npo npp npt nta ntb nti ntm ntn nto ntp ntt o-i oaa oab oai oam oan oao oap oat ob- oba obb obi obm obn obo obp obt oia oib oii oim oin oio oip oit om- oma omb omi omm omn omo omp omt on- ona onb oni onn ono onp ont oo- ooa oob ooi oom oon ooo oop oot op- opa opb opi opm opn opo opp opt ot- ota otb oti otm otn oto otp ott p-p paa pab pai pam pan pao pap pat pba pbb pbi pbm pbn pbo pbp pbt pia pib pii pim pin pio pip pit pma pmb pmi pmm pmn pmo pmp pmt pn- pna pnb pni pnm pnn pno pnp pnt poa pob poi pom pon poo pop pot ppa ppb ppi ppm ppn ppo ppp ppt pt- pta ptb pti ptm ptn pto ptp ptt taa tab tai tam tan tao tap tat tba tbb tbi tbm tbn tbo tbp tbt tia tib tii tim tin tio tip tit tma tmb tmi tmm tmn tmo tmp tmt tna tnb tni tnm tnn tno tnp tnt to- toa tob toi tom ton too top tot tpa tpb tpi tpm tpn tpo tpp tpt tta ttb tti ttm ttn tto ttp ttt