-ic b-p bbb bbc bbf bbi bbm bbo bbp bbr bbs bcb bcc bcf bci bcm bco bcp bcr bcs bfb bfc bff bfi bfm bfo bfp bfr bfs bi- bib bic bif bii bim bio bip bir bis bmb bmc bmf bmi bmm bmo bmp bmr bms bob boc bof boi bom boo bop bor bos bpb bpc bpf bpi bpm bpo bpp bpr bps brb brf bri brm bro brp brr brs bsb bsc bsf bsi bsm bso bsp bsr bss c-- cbb cbc cbf cbi cbm cbo cbp cbr cbs ccb ccc ccf cci ccm cco ccp ccr ccs cfb cfc cff cfi cfm cfo cfp cfr cfs ci- cib cic cif cii cim cio cip cir cis cmb cmc cmf cmi cmm cmo cmp cmr cms co- cob coc cof coi com coo cop cor cos cpb cpc cpf cpi cpm cpo cpp cpr cps crb crc crf cri crm cro crp crr crs csb csc csf csi csm cso csp csr css fbb fbc fbf fbi fbm fbo fbp fbr fbs fcb fcc fcf fci fcm fco fcp fcr fcs ffc fff ffi ffm ffo ffp ffr ffs fib fic fif fii fim fip fir fis fmb fmc fmf fmi fmm fmo fmp fmr fms fob foc fof foi fom foo fop for fos fpb fpc fpi fpm fpo fpp fpr fps frb frc frf fri frm fro frp frr frs fsb fsc fsf fsi fsm fso fsp fsr fss i-f ibb ibc ibf ibi ibm ibo ibp ibr ibs icb icc icf ici icm ico icp icr ics ifb ifc iff ifi ifm ifo ifp ifr ifs iib iic iif iii iim iio iip iir iis im- imb imc imf imi imm imo imp ims io- iob ioc iof ioi iom ioo iop ior ios ipb ipc ipf ipi ipm ipo ipp ipr ips ir- irb irc irf iri irm iro irp irr irs is- isb isc isf isi ism iso isp isr iss m-f m-o m-r mbb mbc mbf mbi mbm mbo mbp mbr mbs mc- mcb mcc mcf mci mcm mco mcp mcr mcs mfb mfc mff mfi mfm mfo mfp mfr mfs mi- mib mic mif mii mim mio mip mir mis mmb mmc mmf mmi mmm mmo mmp mmr mms mob moc mof moi mom moo mop mor mos mpb mpc mpf mpi mpm mpo mpp mpr mps mrb mrc mrf mri mrm mro mrp mrr mrs msb msc msf msi msm mso msp msr mss o-i ob- obb obc obf obi obm obo obp obr obs oc- ocb occ ocf oci ocm oco ocp ocr ocs of- ofb ofc off ofi ofm ofo ofp ofr ofs oib oic oif oii oim oio oip oir ois om- omb omc omf omi omm omo omp omr oms oo- oob ooc oof ooi oom ooo oop oor oos op- opb opc opf opi opm opo opp opr ops or- orb orc orf ori orm oro orp orr ors os- osb osc osf osi osm oso osp osr oss p-p pbb pbc pbf pbi pbm pbo pbp pbr pbs pcb pcc pcf pci pcm pco pcp pcr pcs pfb pfc pff pfi pfm pfo pfp pfr pfs pib pic pif pii pim pio pip pir pis pmb pmc pmf pmi pmm pmo pmp pmr pms pob poc pof poi pom poo pop por pos ppb ppc ppf ppi ppm ppo ppp ppr pps prb prc prf pri prm pro prp prr prs ps- psb psc psf psi psm pso psp psr pss rbb rbc rbf rbi rbm rbo rbp rbr rbs rcb rcc rcf rci rcm rco rcp rcr rcs rfb rfc rff rfi rfm rfo rfp rfr rfs rib ric rif rii rim rio rip rir ris rmb rmc rmf rmi rmm rmo rmp rmr rms rob roc rof roi rom roo rop ror ros rpb rpc rpf rpi rpm rpo rpp rpr rps rrb rrc rrf rri rrm rrp rrr rrs rsb rsc rsf rsi rsm rso rsp rsr rss sbb sbc sbf sbi sbm sbo sbp sbr sbs scb scc scf sci scm sco scp scr scs sfb sfc sff sfi sfm sfo sfp sfr sfs sib sic sif sii sim sio sip sir sis smb smc smf smi smm smo smp smr sms sob soc sof soi som soo sop sor sos spb spc spf spi spm spo spp spr sps sr- srb src srf sri srm sro srp srr srs ss- ssb ssc ssf ssi ssm sso ssp ssr sss