-up ddd ddi ddm ddp ddr ddu di- did dii dim dip dir diu dmd dmi dmm dmp dmr dmu dpd dpi dpm dpp dpr dpu drd dri drm drp drr dru dud dui dum dup dur i-d idd idi idm idp idr idu iid iii iim iip iir iiu im- imd imi imm imp imu ipd ipi ipm ipp ipr ipu ir- ird iri irm irp irr iru iu- iud iui ium iup iur m-r mdd mdi mdm mdp mdr mdu mi- mid mii mim mip mir miu mmd mmi mmm mmp mmr mmu mpd mpi mpm mpp mpr mpu mrd mri mrm mrp mrr mru mud mui mum mup mur muu p-p pdd pdi pdm pdp pdr pdu pid pii pim pip pir piu pmd pmi pmm pmp pmr pmu ppd ppi ppm ppp ppr ppu prd pri prm prp prr pru pud pui pum pup pur puu rdd rdi rdm rdp rdr rdu rid rii rim rip rir rmd rmi rmm rmp rmr rpd rpi rpm rpp rpr rpu rrd rri rrm rrp rrr rru rud rui rum rup rur ruu udd udi udm udp udr udu uid uii uim uip uir uiu um- umd umi umm ump umr umu up- upd upi upm upp upr upu ur- urd uri urm urp urr uru uum uur uuu