a-a a-c aaa aac aad aae aah aak aap ac- aca acc acd ace ach ack acp ad- ada adc add ade adh adk adp aea aec aed aee aeh aek aep aha ahc ahd ahe ahh ahk ahp aka akc akd ake akh akk akp ap- apa apc apd ape aph apk app c-- caa cac cad cae cah cak cap cca ccc ccd cce cch cck ccp cda cdc cdd cde cdh cdk cdp ce- cea cec ced cee ceh cek cep ch- cha chc chd che chh chk chp cka ckc ckd ckh cpa cpc cpd cpe cph cpk cpp daa dac dad dae dah dak dap dca dcc dcd dce dck dcp dda ddc ddd dde ddh ddk ddp de- dea dec ded dee deh dek dep dh- dha dhc dhd dhe dhh dhk dhp dka dkc dke dkk dkp dpa dpc dpd dpe dph dpk dpp eaa eac ead eae eah eak eap ec- eca ecc ecd ece ech eck ed- eda edc edd ede edh edk edp eea eec eed eee eek eep eha ehc ehd ehe ehh ehp eka ekc ekd eke ekh ekp ep- epa epc epd epe eph epp haa hac had hae hah hak hap hca hcc hcd hce hch hck hcp hda hdc hdd hde hdh hdk hdp he- hea hec hed hee heh hek hep hha hhc hhd hhe hhh hhk hhp hka hkd hkh hkk hkp hpa hpc hpd hpe hph hpk hpp ka- kaa kac kad kae kah kak kap kca kcc kcd kce kch kck kcp kda kdc kde kdh kdk kdp ke- kea kec ked kee keh kek kep kha khe khh khk kkc kke kkh kkk kkp kpa kpc kpd kpe kph kpk kpp p-p paa pac pad pae pah pak pap pca pcc pcd pce pch pck pcp pda pdc pdd pde pdh pdk pdp pea pec ped pee peh pek pep pha phc phd phe phk php pka pkc pkd pke pkp ppa ppc ppd ppe pph ppk ppp