a-a a-b aaa aab aag aah aaj aar ab- aba abb abg abh abj abr ag- aga agb agg agh agj agr aha ahb ahg ahh ahj ahr aja ajb ajh ajj ajr ar- ara arb arg arh arj arr baa bab bag bah baj bar bba bbb bbg bbh bbr bga bgb bgg bgh bgr bha bhb bhg bhh bhj bhr bja bjg bjj bjr bra brb brg brh brj brr gaa gab gag gah gaj gar gba gbg gbh gbj gbr gga ggb ggg ggh ggj ggr gha ghb ghg ghh ghj ghr gja gjg gjr gra grb grg grh grj grr haa hab hag hah haj har hba hbb hbg hbh hbj hbr hga hgb hgg hgh hgr hha hhb hhg hhh hhj hhr hja hjr hr- hra hrb hrg hrh hrj hrr jaa jab jag jah jaj jar jba jbg jbj jbr jga jgb jgh jgr jha jhj jhr jja jjb jjg jjj jjr jra jrb jrg jrr ra- raa rab rag rah raj rar rba rbb rbg rbh rbr rga rgb rgg rgh rgr rh- rha rhb rhg rhh rhr rja rjg rjr rra rrb rrg rrh rrr