-up fff ffm ffp ffr ffu fmf fmm fmp fmr fmu fpm fpp fpr fpu frf frm frp frr fru fuf fum fup fur fuu m-f m-r mff mfm mfp mfr mfu mmf mmm mmp mmr mmu mpf mpm mpp mpr mpu mrf mrm mrp mrr mru muf mum mup mur muu p-p pff pfm pfp pfr pfu pmf pmm pmp pmr pmu ppf ppm ppp ppr ppu prf prm prp prr pru puf pum pup pur puu rff rfm rfp rfr rfu rmf rmm rmp rmr rpf rpm rpp rpr rpu rrf rrm rrp rrr rru ruf rum rup rur ruu uff ufm ufp ufr ufu um- umf umm ump umr umu up- upf upm upp upr upu ur- urf urm urp urr uru uum uur uuu