-er a-a a-c a-t aaa aac aad aae aak aam aar aat ac- aca acc acd ace ack acm acr act ad- ada adc add ade adk adm adr adt aea aec aed aee aek aem aer aet aka akc akd ake akk akm akr ama amc amd ame amk amm amr amt ar- ara arc ard are ark arm arr art at- ata atc atd ate atm atr att c-- caa cac cad cae cak cam car cat cca ccc ccd cce cck ccm ccr cct cda cdc cdd cde cdk cdm cdr cdt ce- cea cec ced cee cek cem cer cet cka ckc ckd ckm ckt cma cmc cmd cme cmk cmm cmr cmt cra crc crd cre crk crm crr crt cta ctc ctd cte ctk ctm ctr ctt daa dac dad dae dak dam dar dat dca dcc dcd dce dck dcm dcr dct dda ddc ddd dde ddk ddm ddr ddt de- dea dec ded dee dek dem der det dka dkc dke dkk dkm dkr dkt dma dmc dmd dme dmk dmm dmr dmt dra drc drd dre drk drm drr drt dta dtc dtd dte dtk dtm dtr dtt eaa eac ead eae eak eam ear eat ec- eca ecc ecd ece eck ecm ecr ect ed- eda edc edd ede edk edm edr edt eea eec eed eee eek eem eer eet eka ekc ekd eke ekr ekt em- ema emc emd eme emk emm emr emt era erc erd ere erk erm err ert eta etc etd ete etk etm etr ett k-t ka- kaa kac kad kae kak kam kar kat kca kcc kcd kce kck kcm kcr kct kda kdc kde kdk kdm kdr kdt ke- kea kec ked kee kek kem ker ket kkc kke kkk kkm kkr kkt kma kmc kmd kme kmk kmm kmt kra krc krd krk krr krt kta ktc kte ktk ktm ktr ktt m-r maa mac mad mae mak mam mar mat mc- mca mcc mcd mce mck mcm mcr mct mda mdc mdd mde mdk mdm mdr mdt mea mec med mee mek mem mer met mka mkc mkd mke mkk mkm mkr mkt mma mmc mmd mme mmk mmm mmr mmt mra mrc mrd mre mrk mrm mrr mrt mta mtc mtd mte mtk mtm mtr mtt ra- raa rac rad rae rak ram rar rat rca rcc rcd rce rcm rcr rct rda rdc rdd rde rdm rdr rdt re- rea rec red ree rek rem rer ret rkc rke rkk rkm rkt rma rmc rmd rme rmm rmr rmt rra rrc rrd rrk rrm rrr rrt rta rtc rtd rte rtk rtm rtr rtt taa tac tad tae tak tam tar tat tca tcc tcd tce tck tcm tcr tct tda tdc tdd tde tdk tdm tdr tdt te- tea tec ted tee tek tem ter tet tka tkc tke tkk tkm tkr tkt tma tmc tmd tme tmk tmm tmr tmt tra trc trd tre trk trm trr trt tta ttc ttd tte ttk ttm ttr ttt