ddd ddm ddp ddq dds ddt dmd dmm dmp dms dmt dpd dpm dpp dps dpt dqs dsd dsm dsp dsq dss dst dtd dtm dtp dts dtt mdd mdm mdp mdq mds mdt mmd mmm mmp mms mmt mpd mpm mpp mpq mps mpt mqp mqt msd msm msp msq mss mst mtd mtm mtp mts mtt p-p pdd pdm pdp pdq pds pdt pmd pmm pmp pmq pms pmt ppd ppm ppp ppq pps ppt pqm pqq pqs ps- psd psm psp pss pst pt- ptd ptm ptp ptq pts ptt qds qdt qmp qms qpm qpp qps qqq qsd qsm qsp qst qtd qtm qtq qts sdd sdm sdp sdq sds sdt smd smm smp sms smt spd spm spp spq sps spt sqd sqm sqq sqs ss- ssd ssm ssp ssq sss sst std stm stp stq sts stt tdd tdm tdp tds tdt tmd tmm tmp tmq tms tmt tpd tpm tpp tpq tps tpt tqm tsd tsm tsp tsq tss tst ttd ttm ttp tts ttt