a-a a-b a-i a-t aaa aab aae aag aai aap aat ab- aba abb abe abg abi abp abt aea aeb aee aeg aei aep aet ag- aga agb age agg agi agp agt ai- aia aib aie aig aii aip ait ap- apa apb ape apg api app apt at- ata atb ate atg ati atp att b-p baa bab bae bag bai bap bat bba bbb bbe bbg bbi bbp bbt be- bea beb bee beg bei bep bet bga bgb bge bgg bgi bgp bgt bi- bia bib bie big bii bip bit bpa bpb bpe bpg bpi bpp bpt bta btb bte btg bti btp btt eaa eab eae eag eai eap eat eba ebb ebe ebg ebi ebp ebt eea eeb eee eeg eep eet ega egb ege egg egi egp egt eia eib eie eig eii eip eit ep- epa epb epe epg epi epp ept eta etb ete etg eti etp ett g-p gaa gab gae gag gai gap gat gba gbe gbg gbi gbp gbt ge- gea geb gee geg gei gep get gga ggb ggg ggi ggp ggt gia gib gie gig gii gip git gpa gpb gpe gpg gpi gpp gpt gta gtb gte gtg gti gtp gtt ia- iaa iab iae iag iai iap iat iba ibb ibe ibg ibi ibp ibt ie- iea iee ieg iei iep iet iga igb ige igg igi igp igt iia iib iie iii iip iit ipa ipb ipe ipg ipi ipp ipt ita itb ite itg iti itp itt p-p paa pab pae pag pai pap pat pba pbb pbe pbg pbi pbp pbt pea peb pee peg pei pep pet pga pgb pge pgg pgi pgp pgt pia pib pie pig pii pip pit ppa ppb ppe ppg ppi ppp ppt pt- pta ptb pte ptg pti ptp ptt taa tab tae tag tai tap tat tba tbb tbe tbg tbi tbp tbt te- tea teb tee teg tei tep tet tga tgb tge tgg tgi tgp tgt tia tib tie tig tii tip tit tpa tpb tpe tpg tpi tpp tpt tta ttb tte ttg tti ttp ttt