-up fff ffm ffo ffp ffs fft ffu fmf fmm fmo fmp fms fmt fmu fof fom foo fop fos fot fou fpm fpo fpp fps fpt fpu fsf fsm fso fsp fss fst fsu ftf ftm fto ftp fts ftt ftu fuf fum fuo fup fus fut fuu m-f m-o mff mfm mfo mfp mfs mft mfu mmf mmm mmo mmp mms mmt mmu mof mom moo mop mos mot mou mpf mpm mpo mpp mps mpt mpu msf msm mso msp mss mst msu mtf mtm mto mtp mts mtt mtu muf mum mup mus mut muu of- off ofm ofo ofp ofs oft ofu om- omf omm omo omp oms omt omu oo- oof oom ooo oop oos oot op- opf opm opo opp ops opt os- osf osm oso osp oss ost osu ot- otf otm oto otp ots ott otu ou- ouf oum ouo oup ous out p-p pff pfm pfo pfp pfs pft pfu pmf pmm pmo pmp pms pmt pmu pof pom poo pop pos pot pou ppf ppm ppo ppp pps ppt ppu ps- psf psm pso psp pss pst psu pt- ptf ptm pto ptp pts ptt ptu puf pum pup pus put puu sff sfm sfo sfp sfs sft sfu smf smm smo smp sms smt smu sof som soo sop sos sot sou spf spm spo spp sps spt spu ss- ssf ssm sso ssp sss sst ssu stf stm sto stp sts stt stu suf sum suo sup sus sut suu tff tfm tfo tfp tfs tft tfu tmf tmm tmo tmp tms tmt tmu to- tof tom too top tos tot tou tpf tpm tpo tpp tps tpt tpu tsf tsm tso tsp tss tst tsu ttf ttm tto ttp tts ttt ttu tuf tum tuo tup tus tut tuu uff ufm ufo ufp ufs uft ufu um- umf umm umo ump ums umt umu uom uoo uop uos uot up- upf upm upo upp ups upt upu usf usm uso usp uss ust usu utf utm uto utp uts utt utu uum uus uut uuu