a-a a-b a-c aaa aab aac aag aah aap aar ab- aba abb abc abg abh abp abr ac- aca acb acc acg ach acp acr ag- aga agb agc agg agh agp agr aha ahb ahc ahg ahh ahp ahr ap- apa apb apc apg aph app apr ar- ara arb arc arg arh arp arr b-p baa bab bac bag bah bap bar bba bbb bbc bbg bbh bbp bbr bca bcb bcc bcg bch bcp bcr bga bgb bgc bgg bgh bgp bgr bha bhb bhc bhg bhh bhp bhr bpa bpb bpc bpg bph bpp bpr bra brb brg brh brp brr c-- caa cab cac cag cah cap car cba cbb cbc cbg cbh cbp cbr cca ccb ccc ccg cch ccp ccr cga cgb cgc cgg cgh cgp cgr ch- cha chb chc chg chh chp chr cpa cpb cpc cpg cph cpp cpr cra crb crc crg crh crp crr g-p gaa gab gac gag gah gap gar gba gbc gbg gbh gbp gbr gca gcb gcc gcg gch gcp gcr gga ggb ggc ggg ggh ggp ggr gha ghb ghc ghg ghh ghp ghr gpa gpb gpc gpg gph gpp gpr gra grb grc grg grh grp grr haa hab hac hag hah hap har hba hbb hbc hbg hbh hbp hbr hca hcb hcc hcg hch hcp hcr hga hgb hgc hgg hgh hgp hgr hha hhb hhc hhg hhh hhp hhr hpa hpb hpc hpg hph hpp hpr hr- hra hrb hrc hrg hrh hrp hrr p-p paa pab pac pag pah pap par pba pbb pbc pbg pbp pbr pca pcb pcc pcg pch pcp pcr pga pgb pgc pgg pgh pgp pgr pha phb phc phg php phr ppa ppb ppc ppg pph ppp ppr pra prb prc prg prh prp prr ra- raa rab rac rag rah rap rar rba rbb rbc rbg rbh rbp rbr rca rcb rcc rcg rch rcp rcr rga rgb rgc rgg rgh rgp rgr rh- rha rhb rhc rhg rhh rhp rhr rpa rpb rpc rpg rph rpp rpr rra rrb rrc rrg rrh rrp rrr