-up fff ffm ffp ffs ffu fmf fmm fmp fms fmu fpm fpp fps fpu fsf fsm fsp fss fsu fuf fum fup fus fuu m-f mff mfm mfp mfs mfu mmf mmm mmp mms mmu mpf mpm mpp mps mpu msf msm msp mss msu muf mum mup mus muu p-p pff pfm pfp pfs pfu pmf pmm pmp pms pmu ppf ppm ppp pps ppu ps- psf psm psp pss psu puf pum pup pus puu sff sfm sfp sfs sfu smf smm smp sms smu spf spm spp sps spu ss- ssf ssm ssp sss ssu suf sum sup sus suu uff ufm ufp ufs ufu um- umf umm ump ums umu up- upf upm upp ups upu usf usm usp uss usu uum uus uuu