a-a a-b a-c a-q aaa aab aac aah aan aaq aar ab- aba abb abc abh abn abq abr ac- aca acb acc ach acn acq acr aha ahb ahc ahh ahn ahq ahr an- ana anb anc anh ann anq anr aqa aqc aqn aqr ar- ara arb arc arh arn arq arr baa bab bac bah ban baq bar bba bbb bbc bbh bbn bbq bbr bca bcb bcc bch bcn bcq bcr bha bhb bhc bhh bhq bhr bna bnb bnc bnn bnr bqc bra brb brh brn brq brr c-- caa cab cac cah can caq car cba cbb cbc cbh cbn cbq cbr cca ccb ccc cch ccn ccr ch- cha chb chc chh chn chq chr cn- cna cnb cnc cnh cnn cnr cqa cqb cqc cra crb crc crh crn crq crr haa hab hac hah han haq har hba hbb hbc hbh hbn hbr hca hcb hcc hch hcn hcr hha hhb hhc hhh hhn hhr hna hnb hnc hnh hnn hr- hra hrb hrc hrh hrn hrr naa nab nac nah nan nar nba nbb nbc nbn nbr nca ncb ncc nch ncn ncr nha nhb nhc nhh nhn nhr nna nnb nnc nnh nnn nqc nra nrb nrc nrn nrr qaa qac qah qan qar qba qbc qbq qca qcc qhc qnb qnh qqq qra qrb qrc qrh ra- raa rab rac rah ran raq rar rba rbb rbc rbh rbn rbr rca rcb rcc rch rcn rcr rh- rha rhb rhc rhh rhn rhr rna rnb rnc rnh rnn rnr rqc rqn rra rrb rrc rrh rrn rrq rrr