-up b-p b-u bbb bbd bbi bbk bbp bbr bbu bby bdb bdd bdi bdk bdp bdr bdu bdy bdz bi- bib bid bii bik bip bir biu biy biz bkb bkk bkp bkr bpb bpd bpi bpp bpr bpu bpy brb brd bri brk brp brr bru bry brz bub bud bui buk bup bur buu buy buz by- byd byi byk byp byr byu byz bzd bzp bzr bzu bzz dbb dbd dbi dbk dbp dbr dbu dby dbz ddb ddd ddi ddk ddp ddr ddu ddy ddz di- dib did dii dik dip dir diu diy diz dkb dki dkk dkp dkr dku dpb dpd dpi dpk dpp dpr dpu dpz drb drd dri drk drp drr dru dry drz dub dud dui duk dup dur duy duz dy- dyb dyd dyk dyp dyr dyu dyy dzb dzd dzi dzp dzr dzu i-d ibb ibd ibi ibk ibp ibr ibu iby ibz idb idd idi idk idp idr idu idy iib iid iii iip iir iiu ikb iki ikk ikr iku ipb ipd ipi ipp ipr ipu ipy ir- irb ird iri irk irp irr iru iry iu- iub iud iui iup iur iuz iyr iyy izi izu izy izz k-z kbb kbd kbi kbk kbp kbr kbu kbz kdb kdk kdp kdr kdu kdy kib kid kii kik kip kir kiu kiz kkb kki kkk kkp kkr kku kky kpd kpi kpk kpp kpr kpu krd kri krk krp krr kru kry kub kud kui kuk kup kur kuu kuy kyd kyp kyr kyu kyz kzy p-p pbb pbd pbi pbk pbp pbr pbu pby pbz pdb pdd pdi pdk pdp pdr pdu pdz pib pid pii pik pip pir piu piz pkb pkd pki pkp pkr pku pky ppb ppd ppi ppk ppp ppr ppu ppz prb prd pri prk prp prr pru pry prz pub pud pui puk pup pur puu puy puz py- pyb pyd pyk pyr pyu pzk pzp rbb rbd rbi rbk rbp rbr rbu rdb rdd rdi rdp rdr rdu rdy rib rid rii rik rip rir riy riz rkb rkk rkp rku rky rkz rpb rpd rpi rpk rpp rpr rpu rpz rrb rrd rri rrk rrp rrr rru rub rud rui ruk rup rur ruu ruy ruz ry- ryd ryk ryr ryu ryy ryz rzb rzy ubb ubi ubk ubp ubr ubu uby udb udd udi udk udp udr udu uib uid uii uip uir uiu ukb uki ukk ukp ukr uku ukz up- upb upd upi upk upp upr upu upz ur- urb urd uri urk urp urr uru ury urz uur uuu uyi uyu uzb uzi uzu ybi ybp ybr yby ybz ydy yid yii yip yir yiz yki ykk ypd ypu yrp yru yud yui yuk yup yur yuu yuy yyb yyu yyy yyz yzb yzr yzu yzy zbb zbr zby zib zid zik zip zir ziz zpi zpp zpr zpu zrp zub zud zui zuk zur zuz zzr zzy zzz