a-a a-c a-t aaa aac aad aae aak aap aat ac- aca acc acd ace ack acp act ad- ada adc add ade adk adp adt aea aec aed aee aek aep aet aka akc akd ake akk akp ap- apa apc apd ape apk app apt at- ata atc atd ate atp att c-- caa cac cad cae cak cap cat cca ccc ccd cce cck ccp cct cda cdc cdd cde cdk cdp cdt ce- cea cec ced cee cek cep cet cka ckc ckd ckt cpa cpc cpd cpe cpk cpp cpt cta ctc ctd cte ctk ctp ctt daa dac dad dae dak dap dat dca dcc dcd dce dck dcp dct dda ddc ddd dde ddk ddp ddt de- dea dec ded dee dek dep det dka dkc dke dkk dkp dkt dpa dpc dpd dpe dpk dpp dpt dta dtc dtd dte dtk dtp dtt eaa eac ead eae eak eap eat ec- eca ecc ecd ece eck ect ed- eda edc edd ede edk edp edt eea eec eed eee eek eep eet eka ekc ekd eke ekp ekt ep- epa epc epd epe epp ept eta etc etd ete etk etp ett k-t ka- kaa kac kad kae kak kap kat kca kcc kcd kce kck kcp kct kda kdc kde kdk kdp kdt ke- kea kec ked kee kek kep ket kkc kke kkk kkp kkt kpa kpc kpd kpe kpk kpp kpt kta ktc kte ktk ktp ktt p-p paa pac pad pae pak pap pat pca pcc pcd pce pck pcp pct pda pdc pdd pde pdk pdp pdt pea pec ped pee pek pep pet pka pkc pkd pke pkp pkt ppa ppc ppd ppe ppk ppp ppt pt- pta ptc ptd pte ptk ptp ptt taa tac tad tae tak tap tat tca tcc tcd tce tck tcp tct tda tdc tdd tde tdk tdp tdt te- tea tec ted tee tek tep tet tka tkc tke tkk tkp tkt tpa tpc tpd tpe tpk tpp tpt tta ttc ttd tte ttk ttp ttt