a-a a-b aaa aab aae aag aaj aan aao ab- aba abb abe abg abj abn abo aea aeb aee aeg aej aen aeo ag- aga agb age agg agj agn ago aja ajb aje ajj ajn ajo an- ana anb ane ang anj ann ano aoa aob aoe aog aoj aon aoo baa bab bae bag baj ban bao bba bbb bbe bbg bbn bbo be- bea beb bee beg ben beo bga bgb bge bgg bgn bgo bja bjg bjj bjn bna bnb bne bng bnj bnn bno boa bob boe bog boj bon boo eaa eab eae eag eaj ean eao eba ebb ebe ebg ebj ebn ebo eea eeb eee eeg een eeo ega egb ege egg egn ego eja ejo en- ena enb ene eng enn eno eo- eoa eob eoe eog eon eoo gaa gab gae gag gaj gan gao gba gbe gbg gbj gbn gbo ge- gea geb gee geg gen geo gga ggb ggg ggj ggn ggo gja gje gjg gna gnb gne gnn gno goa gob goe gog gon goo jaa jab jae jag jaj jan jao jba jbg jbj jbo jea jeb jee jeg jej jen jeo jga jgb jge jgn jgo jja jjb jjg jjj jna jne jng jnj jnn jno joa job joe jog joj jon joo naa nab nae nag naj nan nao nba nbb nbe nbg nbn nbo ne- nea neb nee neg nej nen neo nga ngb nge ngg ngj ngn ngo nja nje njn nna nnb nne nng nnn nno no- noa nob noe nog noj non noo oaa oab oae oag oaj oan oao ob- oba obb obe obg obj obn obo oea oeb oee oeg oen oeo oga oge ogg ogn ogo oja ojb oje ojo on- ona onb one ong onj onn ono oo- ooa oob oog oon ooo