b-p bbb bbc bbg bbm bbo bbp bbs bcb bcc bcg bcm bco bcp bcs bgb bgc bgg bgm bgo bgp bgs bmb bmc bmg bmm bmo bmp bms bob boc bog bom boo bop bos bpb bpc bpg bpm bpo bpp bps bsb bsc bsg bsm bso bsp bss c-- cbb cbc cbg cbm cbo cbp cbs ccb ccc ccg ccm cco ccp ccs cgb cgc cgg cgm cgo cgp cgs cmb cmc cmg cmm cmo cmp cms co- cob coc cog com coo cop cos cpb cpc cpg cpm cpo cpp cps csb csc csg csm cso csp css g-p gbc gbg gbm gbo gbp gbs gcb gcc gcg gcm gco gcp gcs ggb ggc ggg ggm ggo ggp ggs gmb gmc gmg gmm gmo gmp gms gob goc gog gom goo gop gos gpb gpc gpg gpm gpo gpp gps gsb gsc gsg gsm gso gsp gss m-o mbb mbc mbg mbm mbo mbp mbs mc- mcb mcc mcg mcm mco mcp mcs mgb mgc mgm mgo mgp mgs mmb mmc mmg mmm mmo mmp mms mob moc mog mom moo mop mos mpb mpc mpg mpm mpo mpp mps msb msc msg msm mso msp mss ob- obb obc obg obm obo obp obs oc- ocb occ ocg ocm oco ocp ocs ogc ogg ogo ogp ogs om- omb omc omg omm omo omp oms oo- oob ooc oog oom ooo oop oos op- opb opc opg opm opo opp ops os- osb osc osg osm oso osp oss p-p pbb pbc pbg pbm pbo pbp pbs pcb pcc pcg pcm pco pcp pcs pgb pgc pgg pgm pgo pgp pgs pmb pmc pmg pmm pmo pmp pms pob poc pog pom poo pop pos ppb ppc ppg ppm ppo ppp pps ps- psb psc psg psm pso psp pss sbb sbc sbg sbm sbo sbp sbs scb scc scg scm sco scp scs sgb sgc sgg sgm sgo sgp sgs smb smc smg smm smo smp sms sob soc sog som soo sop sos spb spc spg spm spo spp sps ss- ssb ssc ssg ssm sso ssp sss