-up b-p b-u bbb bbf bbk bbn bbp bbs bbu bfb bff bfn bfp bfs bfu bkb bkf bkk bkn bkp bks bnb bnf bnk bnn bnp bns bnu bpb bpf bpn bpp bps bpu bsb bsf bsk bsn bsp bss bsu bub buf buk bun bup bus buu fbb fbf fbk fbn fbp fbs fbu fff ffk ffn ffp ffs ffu fkb fkf fkk fkp fnb fnf fnk fnn fnp fns fnu fpb fpk fpn fpp fps fpu fsb fsf fsk fsn fsp fss fsu fub fuf fuk fun fup fus fuu kbb kbf kbk kbn kbp kbs kbu kff kfs kfu kkb kkk kkn kkp kks kku kn- knf knk knn knp knu kpf kpk kpn kpp kps kpu ksb ksf ksk ksn ksp kss ksu kub kuk kun kup kus kuu nbb nbf nbk nbn nbp nbs nbu nfb nff nfk nfn nfp nfs nfu nkf nkk nkn nkp nks nku nnb nnf nnk nnn nnp nns nnu npb npf npn npp nps npu nsb nsf nsk nsn nsp nss nsu nub nuk nun nup nus nuu p-p pbb pbf pbk pbn pbp pbs pbu pfb pff pfk pfn pfp pfs pfu pkb pkf pkn pkp pks pku pn- pnb pnf pnk pnn pnp pns pnu ppb ppf ppk ppn ppp pps ppu ps- psb psf psk psn psp pss psu pub puf puk pun pup pus puu sbb sbf sbk sbn sbp sbs sbu sfb sff sfk sfn sfp sfs sfu sk- skb skf skk skp sks sku snb snf snk snn snp sns snu spb spf spk spn spp sps spu ss- ssb ssf ssk ssn ssp sss ssu sub suf suk sun sup sus suu ubb ubf ubk ubn ubp ubs ubu uff ufn ufp ufs ufu ukb ukf ukk ukn ukp uku un- unb unf unk unn unp uns unu up- upb upf upk upn upp ups upu usb usf usk usn usp uss usu uun uus uuu