b-p bbb bbc bbo bbp bbr bbs bcb bcc bcj bco bcp bcr bcs bjc bjj bjp bjr bjs bob boc boj boo bop bor bos bpb bpc bpo bpp bpr bps brb brj bro brp brr brs bsb bsc bsj bso bsp bsr bss c-- c-j cbb cbc cbj cbo cbp cbr cbs ccb ccc ccj cco ccp ccr ccs cjb cjc cjp cjr cjs co- cob coc coj coo cop cor cos cpb cpc cpj cpo cpp cpr cps crb crc crj cro crp crr crs csb csc csj cso csp csr css jbc jbj jbo jbr jbs jcb jcc jco jcp jcr jcs jjb jjc jjj jjp jjr jjs job joc joj joo jop jor jos jpb jpc jpj jpo jpp jpr jps jrb jrc jro jrp jrr jrs jsb jsc jsj jso jsp jsr jss ob- obb obc obj obo obp obr obs oc- ocb occ ocj oco ocp ocr ocs ojb ojc ojo ojs oo- oob ooc ooo oop oor oos op- opb opc opj opo opp opr ops or- orb orc oro orp orr ors os- osb osc osj oso osp osr oss p-p pbb pbc pbj pbo pbp pbr pbs pcb pcc pcj pco pcp pcr pcs pjc pjo pjp pjs pob poc poo pop por pos ppb ppc ppj ppo ppp ppr pps prb prc pro prp prr prs ps- psb psc psj pso psp psr pss rbb rbc rbo rbp rbr rbs rcb rcc rcj rco rcp rcr rcs rjc rjp rjr rob roc roj roo rop ror ros rpb rpc rpo rpp rpr rps rrb rrc rrp rrr rrs rsb rsc rsj rso rsp rsr rss sbb sbc sbj sbo sbp sbr sbs scb scc scj sco scp scr scs sjb sjc sjj sjp sjr sjs sob soc soj soo sop sor sos spb spc spo spp spr sps sr- srb src srj sro srp srr srs ss- ssb ssc ssj sso ssp ssr sss