a-a a-b a-i aaa aab aae aag aai aam aan aao ab- aba abb abe abg abi abm abn abo aea aeb aee aeg aei aem aen aeo ag- aga agb age agg agi agm agn ago ai- aia aib aie aig aii aim ain aio ama amb ame amg ami amm amn amo an- ana anb ane ang ani anm ann ano aoa aob aoe aog aoi aom aon aoo baa bab bae bag bai bam ban bao bba bbb bbe bbg bbi bbm bbn bbo be- bea beb bee beg bei bem ben beo bga bgb bge bgg bgi bgm bgn bgo bi- bia bib bie big bii bim bin bio bma bmb bme bmg bmi bmm bmn bmo bna bnb bne bng bni bnn bno boa bob boe bog boi bom bon boo eaa eab eae eag eai eam ean eao eba ebb ebe ebg ebi ebm ebn ebo eea eeb eee eeg eem een eeo ega egb ege egg egi egm egn ego eia eib eie eig eii eim ein eio em- ema emb eme emg emi emm emn emo en- ena enb ene eng eni enm enn eno eo- eoa eob eoe eog eoi eom eon eoo gaa gab gae gag gai gam gan gao gba gbe gbg gbi gbm gbn gbo ge- gea geb gee geg gei gem gen geo gga ggb ggg ggi ggm ggn ggo gia gib gie gig gii gim gin gio gma gmb gme gmg gmi gmm gmn gmo gna gnb gne gni gnm gnn gno goa gob goe gog goi gom gon goo ia- iaa iab iae iag iai iam ian iao iba ibb ibe ibg ibi ibm ibn ibo ie- iea iee ieg iei iem ien iga igb ige igg igi igm ign igo iia iib iie iii iim iin iio im- ima imb ime img imi imm imn imo in- ina inb ine ing ini inm inn ino io- ioa iob ioe iog ioi iom ion ioo m-o maa mab mae mag mai mam man mao mba mbb mbe mbg mbi mbm mbo mea meb mee meg mei mem men meo mga mgb mge mgi mgm mgn mgo mi- mia mib mie mig mii mim min mio mma mmb mme mmg mmi mmm mmn mmo mna mnb mne mng mni mnm mnn mno moa mob moe mog moi mom mon moo n-i naa nab nae nag nai nam nan nao nba nbb nbe nbg nbi nbm nbn nbo ne- nea neb nee neg nei nem nen neo nga ngb nge ngg ngi ngm ngn ngo nia nib nie nig nii nim nin nio nma nmb nme nmg nmi nmm nmn nmo nna nnb nne nng nni nnm nnn nno no- noa nob noe nog noi nom non noo o-i oaa oab oae oag oai oam oan oao ob- oba obb obe obg obi obm obn obo oea oeb oee oeg oei oem oen oeo oga oge ogg ogi ogn ogo oia oib oie oii oim oin oio om- oma omb ome omg omi omm omn omo on- ona onb one ong oni onn ono oo- ooa oob oog ooi oom oon ooo