a-a a-c aaa aac aah aak aan aao aar ac- aca acc ach ack acn aco acr aha ahc ahh ahk ahn aho ahr aka akc akh akk akn ako akr an- ana anc anh ank ann ano anr aoa aoc aoh aok aon aoo aor ar- ara arc arh ark arn aro arr c-- caa cac cah cak can cao car cca ccc cch cck ccn cco ccr ch- cha chc chh chk chn cho chr cka ckc ckh cko cn- cna cnc cnh cnn cno cnr co- coa coc coh cok con coo cor cra crc crh crk crn cro crr haa hac hah hak han hao har hca hcc hch hck hcn hco hcr hha hhc hhh hhk hhn hho hhr hka hkh hkk hkn hko hkr hna hnc hnh hnk hnn hno hoa hoc hoh hok hon hoo hor hr- hra hrc hrh hrk hrn hro hrr ka- kaa kac kah kak kan kao kar kca kcc kch kck kcn kcr kha khh khk khn kho khr kkc kkh kkk kkn kkr kn- kna knc knk knn kno knr koa koc koh kok kon koo kor kra krc krk krn kro krr naa nac nah nak nan nao nar nca ncc nch nck ncn nco ncr nha nhc nhh nhk nhn nhr nka nkc nkk nkn nko nkr nna nnc nnh nnk nnn nno no- noa noc noh nok non noo nor nra nrc nrk nrn nro nrr oaa oac oah oak oan oao oar oc- oca occ och ock ocn oco ocr oha ohc ohh ohn oho ohr oka okc okk oko okr on- ona onc onh onk onn ono onr oo- ooa ooc ooh ook oon ooo oor or- ora orc orh ork orn oro orr ra- raa rac rah rak ran rao rar rca rcc rch rcn rco rcr rh- rha rhc rhh rhn rho rhr rkc rkk rko rna rnc rnh rnn rno rnr roa roc roh rok ron roo ror rra rrc rrh rrk rrn rrr