-ic b-p bbb bbc bbd bbf bbi bbm bbo bbp bbr bbs bcb bcc bcd bcf bci bcm bco bcp bcr bcs bdb bdc bdd bdf bdi bdm bdo bdp bdr bds bfb bfc bfd bff bfi bfm bfo bfp bfr bfs bi- bib bic bid bif bii bim bio bip bir bis bmb bmc bmd bmf bmi bmm bmo bmp bmr bms bob boc bod bof boi bom boo bop bor bos bpb bpc bpd bpf bpi bpm bpo bpp bpr bps brb brd brf bri brm bro brp brr brs bsb bsc bsd bsf bsi bsm bso bsp bsr bss c-- cbb cbc cbd cbf cbi cbm cbo cbp cbr cbs ccb ccc ccd ccf cci ccm cco ccp ccr ccs cdb cdc cdd cdf cdi cdm cdo cdp cdr cds cfb cfc cfd cff cfi cfm cfo cfp cfr cfs ci- cib cic cid cif cii cim cio cip cir cis cmb cmc cmd cmf cmi cmm cmo cmp cmr cms co- cob coc cod cof coi com coo cop cor cos cpb cpc cpd cpf cpi cpm cpo cpp cpr cps crb crc crd crf cri crm cro crp crr crs csb csc csd csf csi csm cso csp csr css dbb dbc dbd dbf dbi dbm dbo dbp dbr dbs dcb dcc dcd dcf dci dcm dco dcp dcr dcs ddb ddc ddd ddf ddi ddm ddo ddp ddr dds dfb dfc dfd dff dfi dfm dfo dfp dfr dfs di- dib dic did dif dii dim dio dip dir dis dmb dmc dmd dmf dmi dmm dmo dmp dmr dms dob doc dod dof doi dom doo dop dor dos dpb dpc dpd dpf dpi dpm dpo dpp dpr dps drb drc drd dri drm dro drp drr drs dsb dsc dsd dsf dsi dsm dso dsp dsr dss fbb fbc fbd fbf fbi fbm fbo fbp fbr fbs fcb fcc fcd fcf fci fcm fco fcp fcr fcs fdb fdc fdd fdf fdi fdm fdo fdp fdr fds ffc ffd fff ffi ffm ffo ffp ffr ffs fib fic fid fif fii fim fip fir fis fmb fmc fmd fmf fmi fmm fmo fmp fmr fms fob foc fof foi fom foo fop for fos fpb fpc fpd fpi fpm fpo fpp fpr fps frb frc frd frf fri frm fro frp frr frs fsb fsc fsd fsf fsi fsm fso fsp fsr fss i-d i-f ibb ibc ibd ibf ibi ibm ibo ibp ibr ibs icb icc icd icf ici icm ico icp icr ics idb idc idd idf idi idm ido idp idr ids ifb ifc ifd iff ifi ifm ifo ifp ifr ifs iib iic iid iif iii iim iio iip iir iis im- imb imc imd imf imi imm imo imp ims io- iob ioc iod iof ioi iom ioo iop ior ios ipb ipc ipd ipf ipi ipm ipo ipp ipr ips ir- irb irc ird irf iri irm iro irp irr irs is- isb isc isd isf isi ism iso isp isr iss m-f m-o m-r mbb mbc mbd mbf mbi mbm mbo mbp mbr mbs mc- mcb mcc mcd mcf mci mcm mco mcp mcr mcs mdb mdc mdd mdf mdi mdm mdo mdp mdr mds mfb mfc mfd mff mfi mfm mfo mfp mfr mfs mi- mib mic mid mif mii mim mio mip mir mis mmb mmc mmd mmf mmi mmm mmo mmp mmr mms mob moc mod mof moi mom moo mop mor mos mpb mpc mpd mpf mpi mpm mpo mpp mpr mps mrb mrc mrd mrf mri mrm mro mrp mrr mrs msb msc msd msf msi msm mso msp msr mss o-i ob- obb obc obd obf obi obm obo obp obr obs oc- ocb occ ocd ocf oci ocm oco ocp ocr ocs odb odc odd odf odi odm odo odp odr ods of- ofb ofc ofd off ofi ofm ofo ofp ofr ofs oib oic oid oif oii oim oio oip oir ois om- omb omc omd omf omi omm omo omp omr oms oo- oob ooc ood oof ooi oom ooo oop oor oos op- opb opc opd opf opi opm opo opp opr ops or- orb orc ord orf ori orm oro orp orr ors os- osb osc osd osf osi osm oso osp osr oss p-p pbb pbc pbd pbf pbi pbm pbo pbp pbr pbs pcb pcc pcd pcf pci pcm pco pcp pcr pcs pdb pdc pdd pdf pdi pdm pdo pdp pdr pds pfb pfc pfd pff pfi pfm pfo pfp pfr pfs pib pic pid pif pii pim pio pip pir pis pmb pmc pmd pmf pmi pmm pmo pmp pmr pms pob poc pod pof poi pom poo pop por pos ppb ppc ppd ppf ppi ppm ppo ppp ppr pps prb prc prd prf pri prm pro prp prr prs ps- psb psc psd psf psi psm pso psp psr pss rbb rbc rbd rbf rbi rbm rbo rbp rbr rbs rcb rcc rcd rcf rci rcm rco rcp rcr rcs rdb rdc rdd rdf rdi rdm rdo rdp rdr rds rfb rfc rfd rff rfi rfm rfo rfp rfr rfs rib ric rid rif rii rim rio rip rir ris rmb rmc rmd rmf rmi rmm rmo rmp rmr rms rob roc rod rof roi rom roo rop ror ros rpb rpc rpd rpf rpi rpm rpo rpp rpr rps rrb rrc rrd rrf rri rrm rrp rrr rrs rsb rsc rsd rsf rsi rsm rso rsp rsr rss sbb sbc sbd sbf sbi sbm sbo sbp sbr sbs scb scc scd scf sci scm sco scp scr scs sdb sdc sdd sdf sdi sdm sdo sdp sdr sds sfb sfc sfd sff sfi sfm sfo sfp sfr sfs sib sic sid sif sii sim sio sip sir sis smb smc smd smf smi smm smo smp smr sms sob soc sod sof soi som soo sop sor sos spb spc spd spf spi spm spo spp spr