-up b-p b-u bbb bbk bbm bbn bbo bbp bbr bbu bkb bkk bkm bkn bko bkp bkr bmb bmk bmm bmn bmo bmp bmr bmu bnb bnk bnn bno bnp bnr bnu bob bok bom bon boo bop bor bou bpb bpm bpn bpo bpp bpr bpu brb brk brm brn bro brp brr bru bub buk bum bun buo bup bur buu kbb kbk kbm kbn kbo kbp kbr kbu kkb kkk kkm kkn kkp kkr kku kmb kmk kmm kmo kmp kmu kn- knk knm knn kno knp knr knu kob kok kom kon koo kop kor kou kpk kpm kpn kpo kpp kpr kpu krk krn kro krp krr kru kub kuk kum kun kup kur kuu m-o m-r mbb mbk mbm mbo mbp mbr mbu mkb mkk mkm mkn mko mkp mkr mku mmb mmk mmm mmn mmo mmp mmr mmu mnb mnk mnm mnn mno mnp mnr mnu mob mok mom mon moo mop mor mou mpb mpk mpm mpn mpo mpp mpr mpu mrb mrk mrm mrn mro mrp mrr mru mub muk mum mun mup mur muu nbb nbk nbm nbn nbo nbp nbr nbu nkk nkm nkn nko nkp nkr nku nmb nmk nmm nmn nmo nmp nmr nmu nnb nnk nnm nnn nno nnp nnu no- nob nok nom non noo nop nor nou npb npm npn npo npp npr npu nrb nrk nrm nrn nro nrp nrr nru nub nuk num nun nuo nup nur nuu ob- obb obk obm obn obo obp obr obu okb okk oko okp okr oku om- omb omm omn omo omp omr omu on- onb onk onn ono onp onr onu oo- oob ook oom oon ooo oop oor op- opb opk opm opn opo opp opr or- orb ork orm orn oro orp orr oru ou- ouk oum oun ouo oup our p-p pbb pbk pbm pbn pbo pbp pbr pbu pkb pkm pkn pko pkp pkr pku pmb pmk pmm pmn pmo pmp pmr pmu pn- pnb pnk pnm pnn pno pnp pnr pnu pob pok pom pon poo pop por pou ppb ppk ppm ppn ppo ppp ppr ppu prb prk prm prn pro prp prr pru pub puk pum pun pup pur puu rbb rbk rbm rbn rbo rbp rbr rbu rkb rkk rkm rko rkp rku rmb rmm rmn rmo rmp rmr rnb rnm rnn rno rnp rnr rnu rob rok rom ron roo rop ror rou rpb rpk rpm rpn rpo rpp rpr rpu rrb rrk rrm rrn rrp rrr rru rub ruk rum run ruo rup rur ruu ubb ubk ubn ubo ubp ubr ubu ukb ukk ukn ukp ukr uku um- umb umm umn umo ump umr umu un- unb unk unm unn uno unp unr unu uob uok uom uon uoo uop uor up- upb upk upm upn upo upp upr upu ur- urb urk urm urn uro urp urr uru uum uun uur uuu