b-p bbb bbc bbh bbn bbo bbp bbr bbs bby bcb bcc bch bcn bco bcp bcr bcs bcy bhb bhc bhh bho bhp bhr bhs bnb bnc bnn bno bnp bnr bns bob boc boh bon boo bop bor bos boy bpb bpc bph bpn bpo bpp bpr bps bpy brb brh brn bro brp brr brs bry bsb bsc bsh bsn bso bsp bsr bss bsy by- byc byh byn byo byp byr bys c-- cbb cbc cbh cbn cbo cbp cbr cbs cby ccb ccc cch ccn cco ccp ccr ccs ch- chb chc chh chn cho chp chr chs chy cn- cnb cnc cnh cnn cno cnp cnr cns cny co- cob coc coh con coo cop cor cos coy cpb cpc cph cpn cpo cpp cpr cps crb crc crh crn cro crp crr crs cry csb csc csh csn cso csp csr css csy cyb cyc cyn cyo cyp cyr cys hbb hbc hbh hbn hbo hbp hbr hbs hby hcb hcc hch hcn hco hcp hcr hcs hcy hhb hhc hhh hhn hho hhp hhr hhs hhy hnb hnc hnh hnn hno hns hny hob hoc hoh hon hoo hop hor hos hoy hpb hpc hph hpn hpo hpp hpr hps hpy hr- hrb hrc hrh hrn hro hrp hrr hrs hsb hsc hsh hsn hsp hsr hss hsy hy- hyb hyc hyh hyn hyo hyp hyr hys hyy nbb nbc nbn nbo nbp nbr nbs ncb ncc nch ncn nco ncp ncr ncs nhb nhc nhh nhn nhp nhr nhs nhy nnb nnc nnh nnn nno nnp nns no- nob noc noh non noo nop nor nos noy npb npc nph npn npo npp npr nps nrb nrc nrn nro nrp nrr nrs nry nsb nsc nsh nsn nso nsp nsr nss nsy nyc nyn nyo nyp nys nyy ob- obb obc obh obn obo obp obr obs oby oc- ocb occ och ocn oco ocp ocr ocs ohc ohh ohn oho ohp ohr ohs on- onb onc onh onn ono onp onr ons ony oo- oob ooc ooh oon ooo oop oor oos op- opb opc oph opn opo opp opr ops opy or- orb orc orh orn oro orp orr ors ory os- osb osc osh osn oso osp osr oss oyo oys p-p pbb pbc pbn pbo pbp pbr pbs pby pcb pcc pch pcn pco pcp pcr pcs phb phc phn pho php phr phs phy pn- pnb pnc pnh pnn pno pnp pnr pns pny pob poc poh pon poo pop por pos poy ppb ppc pph ppn ppo ppp ppr pps prb prc prh prn pro prp prr prs pry ps- psb psc psh psn pso psp psr pss psy py- pyb pyc pyn pyo pyr pys rbb rbc rbh rbn rbo rbp rbr rbs rcb rcc rch rcn rco rcp rcr rcs rh- rhb rhc rhh rhn rho rhp rhr rhs rnb rnc rnh rnn rno rnp rnr rns rny rob roc roh ron roo rop ror ros roy rpb rpc rph rpn rpo rpp rpr rps rrb rrc rrh rrn rrp rrr rrs rsb rsc rsh rsn rso rsp rsr rss ry- ryc ryn ryo ryr rys ryy sbb sbc sbh sbn sbo sbp sbr sbs sby scb scc sch scn sco scp scr scs sh- shb shc shh shn sho shp shr shs shy snb snc snn sno snp snr sns sny sob soc soh son soo sop sor sos soy spb spc sph spn spo spp spr sps spy sr- srb src srh srn sro srp srr srs sry ss- ssb ssc ssh ssn sso ssp ssr sss sy- syb syc syh syn syp syr sys ybc ybp ybr ybs yby ycc ych yco ycp ycs ycy yhc yhs ynn ynp yns yny yob yoc yon yoo yop yor yos yoy ypo yps yrc yrn yro yrp yrs ysb ysc yso ysp ysr yss ysy yyb yyc yys yyy