a-a a-c aaa aac aaf aah aar aay ac- aca acc acf ach acr acy af- afa afc aff afh afr afy aha ahc ahf ahh ahr ahy ar- ara arc arf arh arr ary ay- aya ayc ayf ayh ayr c-- caa cac caf cah car cay cca ccc ccf cch ccr cfa cfc cff cfh cfr ch- cha chc chf chh chr chy cra crc crf crh crr cry cya cyc cyf cyr faa fac faf fah far fay fca fcc fcf fcr fcy ffa ffc fff ffh ffr ffy fha fhc fhf fhh fhr fra frc frf frh frr fry fy- fya fyc haa hac haf hah har hay hca hcc hcf hch hcr hcy hfa hfc hff hfh hfr hfy hha hhc hhf hhh hhr hhy hr- hra hrc hrf hrh hrr hy- hya hyc hyh hyr hyy ra- raa rac raf rah rar ray rca rcc rcf rch rcr rfa rfc rff rfh rfr rh- rha rhc rhf rhh rhr rra rrc rrf rrh rrr ry- rya ryc ryf ryr ryy yaa yac yaf yah yar yay yca ycc ycf ych ycy yfa yfc yff yfr yha yhc yra yrc yrf yyc yyf yyy