-up ddd ddm ddo ddp ddt ddu dmd dmm dmo dmp dmt dmu dod dom doo dop dot dou dpd dpm dpo dpp dpt dpu dtd dtm dto dtp dtt dtu dud dum duo dup dut m-o mdd mdm mdo mdp mdt mdu mmd mmm mmo mmp mmt mmu mod mom moo mop mot mou mpd mpm mpo mpp mpt mpu mtd mtm mto mtp mtt mtu mud mum mup mut muu odd odm odo odp odt odu om- omd omm omo omp omt omu oo- ood oom ooo oop oot op- opd opm opo opp opt ot- otd otm oto otp ott otu ou- oud oum ouo oup out p-p pdd pdm pdo pdp pdt pdu pmd pmm pmo pmp pmt pmu pod pom poo pop pot pou ppd ppm ppo ppp ppt ppu pt- ptd ptm pto ptp ptt ptu pud pum pup put puu tdd tdm tdo tdp tdt tdu tmd tmm tmo tmp tmt tmu to- tod tom too top tot tou tpd tpm tpo tpp tpt tpu ttd ttm tto ttp ttt ttu tud tum tuo tup tut tuu udd udm udo udp udt udu um- umd umm umo ump umt umu uod uom uoo uop uot up- upd upm upo upp upt upu utd utm uto utp utt utu uum uut uuu