a-a a-b a-c aaa aab aac aad aah aap aar aay ab- aba abb abc abd abh abp abr aby ac- aca acb acc acd ach acp acr acy ad- ada adb adc add adh adp adr ady aha ahb ahc ahd ahh ahp ahr ahy ap- apa apb apc apd aph app apr apy ar- ara arb arc ard arh arp arr ary ay- aya ayc ayd ayh ayp ayr b-p baa bab bac bad bah bap bar bay bba bbb bbc bbd bbh bbp bbr bby bca bcb bcc bcd bch bcp bcr bcy bda bdb bdc bdd bdh bdp bdr bdy bha bhb bhc bhd bhh bhp bhr bpa bpb bpc bpd bph bpp bpr bpy bra brb brd brh brp brr bry by- bya byc byd byh byp byr c-- caa cab cac cad cah cap car cay cba cbb cbc cbd cbh cbp cbr cby cca ccb ccc ccd cch ccp ccr cda cdb cdc cdd cdh cdp cdr cdy ch- cha chb chc chd chh chp chr chy cpa cpb cpc cpd cph cpp cpr cra crb crc crd crh crp crr cry cya cyb cyc cyd cyp cyr daa dab dac dad dah dap dar day dba dbb dbc dbd dbh dbp dbr dby dca dcb dcc dcd dcp dcr dda ddb ddc ddd ddh ddp ddr ddy dh- dha dhb dhc dhd dhh dhp dhr dpa dpb dpc dpd dph dpp dpr dra drb drc drd drp drr dry dy- dya dyb dyc dyd dyp dyr dyy haa hab hac had hah hap har hay hba hbb hbc hbd hbh hbp hbr hby hca hcb hcc hcd hch hcp hcr hcy hda hdb hdc hdd hdh hdp hdr hdy hha hhb hhc hhd hhh hhp hhr hhy hpa hpb hpc hpd hph hpp hpr hpy hr- hra hrb hrc hrd hrh hrp hrr hy- hya hyb hyc hyd hyh hyp hyr hyy p-p paa pab pac pad pah pap par pay pba pbb pbc pbd pbp pbr pby pca pcb pcc pcd pch pcp pcr pda pdb pdc pdd pdh pdp pdr pha phb phc phd php phr phy ppa ppb ppc ppd pph ppp ppr pra prb prc prd prh prp prr pry py- pya pyb pyc pyd pyr ra- raa rab rac rad rah rap rar ray rba rbb rbc rbd rbh rbp rbr rca rcb rcc rcd rch rcp rcr rda rdb rdc rdd rdh rdp rdr rdy rh- rha rhb rhc rhd rhh rhp rhr rpa rpb rpc rpd rph rpp rpr rra rrb rrc rrd rrh rrp rrr ry- rya ryc ryd ryr ryy yaa yab yac yad yah yap yar yay ybc ybp ybr yby yca ycc ycd ych ycp ycy yda ydy yha yhc ypa ypd yra yrc yrp yyb yyc yyy