a-a a-b a-i a-t aaa aab aae aag aai aak aan aao aat ab- aba abb abe abg abi abk abn abo abt aea aeb aee aeg aei aek aen aeo aet ag- aga agb age agg agi agk agn ago agt ai- aia aib aie aig aii aik ain aio ait aka akb ake akg aki akk akn ako an- ana anb ane ang ani ank ann ano ant aoa aob aoe aog aoi aok aon aoo aot at- ata atb ate atg ati atn ato att baa bab bae bag bai bak ban bao bat bba bbb bbe bbg bbi bbk bbn bbo bbt be- bea beb bee beg bei bek ben beo bet bga bgb bge bgg bgi bgk bgn bgo bgt bi- bia bib bie big bii bik bin bio bit bka bkb bke bkg bkk bkn bko bkt bna bnb bne bng bni bnk bnn bno bnt boa bob boe bog boi bok bon boo bot bta btb bte btg bti btk btn bto btt eaa eab eae eag eai eak ean eao eat eba ebb ebe ebg ebi ebk ebn ebo ebt eea eeb eee eeg eek een eeo eet ega egb ege egg egi egn ego egt eia eib eie eig eii eik ein eio eit eka ekb eke ekg eki eko ekt en- ena enb ene eng eni enk enn eno ent eo- eoa eob eoe eog eoi eok eon eoo eot eta etb ete etg eti etk etn eto ett gaa gab gae gag gai gak gan gao gat gba gbe gbg gbi gbk gbn gbo gbt ge- gea geb gee geg gei gek gen geo get gga ggb ggg ggi ggn ggo ggt gia gib gie gig gii gik gin gio git gka gkb gkn gko gkt gna gnb gne gni gnn gno gnt goa gob goe gog goi gok gon goo got gta gtb gte gtg gti gtk gtn gto gtt ia- iaa iab iae iag iai ian iao iat iba ibb ibe ibg ibi ibk ibn ibo ibt ie- iea iee ieg iei iek ien iet iga igb ige igg igi igk ign igo igt iia iib iie iii iin iio iit ika ikb ike iki ikk iko ikt in- ina inb ine ing ini ink inn ino int io- ioa iob ioe iog ioi ion ioo iot ita itb ite itg iti itk itn ito itt k-t ka- kaa kab kae kag kai kak kan kao kat kba kbb kbe kbi kbk kbn kbo ke- kea keb kee keg kei kek ken keo ket kga kgb kgi kgo kia kib kie kig kii kik kin kio kit kkb kke kki kkk kkn kkt kn- kna kne kng kni knk knn kno knt koa kob koe kog koi kok kon koo kot kta ktb kte ktg ktk ktn kto ktt n-i naa nab nae nag nai nak nan nao nat nba nbb nbe nbg nbi nbk nbn nbo nbt ne- nea neb nee neg nei nek nen neo net nga ngb nge ngg ngi ngk ngn ngo ngt nia nib nie nig nii nik nin nio nit nka nke nki nkk nkn nko nkt nna nnb nne nng nni nnk nnn nno nnt no- noa nob noe nog noi nok non noo not nta ntb nte ntg nti ntk ntn nto ntt o-i oaa oab oae oag oai oak oan oao oat ob- oba obb obe obg obi obk obn obo obt oea oeb oee oeg oei oen oeo oet oga oge ogg ogi ogn ogo ogt oia oib oie oii oik oin oio oit oka okb oke okg oki okk oko on- ona onb one ong oni onk onn ono ont oo- ooa oob oog ooi ook oon ooo oot ot- ota otb ote otg oti otk otn oto ott taa tab tae tag tai tak tan tao tat tba tbb tbe tbg tbi tbk tbn tbo tbt te- tea teb tee teg tei tek ten teo tet tga tgb tge tgg tgi tgk tgn tgo tgt tia tib tie tig tii tik tin tio tit tka tkb tke tkg tkk tko tkt tna tnb tne tng tni tnk tnn tno tnt to- toa tob toe tog toi tok ton too tot tta ttb tte ttg tti ttk ttn tto ttt