a-a a-c aaa aac aad aaf aah aar ac- aca acc acd acf ach acr ad- ada adc add adf adh adr af- afa afc afd aff afh afr aha ahc ahd ahf ahh ahr ar- ara arc ard arf arh arr c-- caa cac cad caf cah car cca ccc ccd ccf cch ccr cda cdc cdd cdf cdh cdr cfa cfc cfd cff cfh cfr ch- cha chc chd chf chh chr cra crc crd crf crh crr daa dac dad daf dah dar dca dcc dcd dcf dcr dda ddc ddd ddf ddh ddr dfa dfc dfd dff dfh dfr dh- dha dhc dhd dhf dhh dhr dra drc drd drr faa fac fad faf fah far fca fcc fcd fcf fcr fda fdc fdd fdf fdh fdr ffa ffc ffd fff ffh ffr fha fhc fhf fhh fhr fra frc frd frf frh frr haa hac had haf hah har hca hcc hcd hcf hch hcr hda hdc hdd hdf hdh hdr hfa hfc hfd hff hfh hfr hha hhc hhd hhf hhh hhr hr- hra hrc hrd hrf hrh hrr ra- raa rac rad raf rah rar rca rcc rcd rcf rch rcr rda rdc rdd rdf rdh rdr rfa rfc rfd rff rfh rfr rh- rha rhc rhd rhf rhh rhr rra rrc rrd rrf rrh rrr