-ic b-u bbb bbc bbd bbf bbi bbm bbo bbr bbs bbu bcb bcc bcd bcf bci bcm bco bcr bcs bcu bdb bdc bdd bdf bdi bdm bdo bdr bds bdu bfb bfc bfd bff bfi bfm bfo bfr bfs bfu bi- bib bic bid bif bii bim bio bir bis biu bmb bmc bmd bmf bmi bmm bmo bmr bms bmu bob boc bod bof boi bom boo bor bos bou brb brd brf bri brm bro brr brs bru bsb bsc bsd bsf bsi bsm bso bsr bss bsu bub buc bud buf bui bum buo bur bus buu c-- cbb cbc cbd cbf cbi cbm cbo cbr cbs cbu ccb ccc ccd ccf cci ccm cco ccr ccs ccu cdb cdc cdd cdf cdi cdm cdo cdr cds cdu cfb cfc cfd cff cfi cfm cfo cfr cfs cfu ci- cib cic cid cif cii cim cio cir cis ciu cmb cmc cmd cmf cmi cmm cmo cmr cms cmu co- cob coc cod cof coi com coo cor cos cou crb crc crd crf cri crm cro crr crs cru csb csc csd csf csi csm cso csr css csu cub cuc cud cuf cui cum cuo cur cus cuu dbb dbc dbd dbf dbi dbm dbo dbr dbs dbu dcb dcc dcd dcf dci dcm dco dcr dcs dcu ddb ddc ddd ddf ddi ddm ddo ddr dds ddu dfb dfc dfd dff dfi dfm dfo dfr dfs dfu di- dib dic did dif dii dim dio dir dis diu dmb dmc dmd dmf dmi dmm dmo dmr dms dmu dob doc dod dof doi dom doo dor dos dou drb drc drd dri drm dro drr drs dru dsb dsc dsd dsf dsi dsm dso dsr dss dsu dub duc dud duf dui dum duo dur dus fbb fbc fbd fbf fbi fbm fbo fbr fbs fbu fcb fcc fcd fcf fci fcm fco fcr fcs fcu fdb fdc fdd fdf fdi fdm fdo fdr fds fdu ffc ffd fff ffi ffm ffo ffr ffs ffu fib fic fid fif fii fim fir fis fiu fmb fmc fmd fmf fmi fmm fmo fmr fms fmu fob foc fof foi fom foo for fos fou frb frc frd frf fri frm fro frr frs fru fsb fsc fsd fsf fsi fsm fso fsr fss fsu fub fud fuf fui fum fuo fur fus fuu i-d i-f ibb ibc ibd ibf ibi ibm ibo ibr ibs ibu icb icc icd icf ici icm ico icr ics icu idb idc idd idf idi idm ido idr ids idu ifb ifc ifd iff ifi ifm ifo ifr ifs ifu iib iic iid iif iii iim iio iir iis iiu im- imb imc imd imf imi imm imo ims imu io- iob ioc iod iof ioi iom ioo ior ios iou ir- irb irc ird irf iri irm iro irr irs iru is- isb isc isd isf isi ism iso isr iss isu iu- iub iuc iud iui ium iur ius m-f m-o m-r mbb mbc mbd mbf mbi mbm mbo mbr mbs mbu mc- mcb mcc mcd mcf mci mcm mco mcr mcs mcu mdb mdc mdd mdf mdi mdm mdo mdr mds mdu mfb mfc mfd mff mfi mfm mfo mfr mfs mfu mi- mib mic mid mif mii mim mio mir mis miu mmb mmc mmd mmf mmi mmm mmo mmr mms mmu mob moc mod mof moi mom moo mor mos mou mrb mrc mrd mrf mri mrm mro mrr mrs mru msb msc msd msf msi msm mso msr mss msu mub muc mud muf mui mum mur mus muu o-i ob- obb obc obd obf obi obm obo obr obs obu oc- ocb occ ocd ocf oci ocm oco ocr ocs ocu odb odc odd odf odi odm odo odr ods odu of- ofb ofc ofd off ofi ofm ofo ofr ofs ofu oib oic oid oif oii oim oio oir ois oiu om- omb omc omd omf omi omm omo omr oms omu oo- oob ooc ood oof ooi oom ooo oor oos or- orb orc ord orf ori orm oro orr ors oru os- osb osc osd osf osi osm oso osr oss osu ou- ouc oud ouf oui oum ouo our ous rbb rbc rbd rbf rbi rbm rbo rbr rbs rbu rcb rcc rcd rcf rci rcm rco rcr rcs rcu rdb rdc rdd rdf rdi rdm rdo rdr rds rdu rfb rfc rfd rff rfi rfm rfo rfr rfs rfu rib ric rid rif rii rim rio rir ris rmb rmc rmd rmf rmi rmm rmo rmr rms rob roc rod rof roi rom roo ror ros rou rrb rrc rrd rrf rri rrm rrr rrs rru rsb rsc rsd rsf rsi rsm rso rsr rss rsu rub ruc rud ruf rui rum ruo rur rus ruu sbb sbc sbd sbf sbi sbm sbo sbr sbs sbu scb scc scd scf sci scm sco scr scs scu sdb sdc sdd sdf sdi sdm sdo sdr sds sdu sfb sfc sfd sff sfi sfm sfo sfr sfs sfu sib sic sid sif sii sim sio sir sis siu smb smc smd smf smi smm smo smr sms smu sob soc sod sof soi som soo sor sos sou sr- srb src srd srf sri srm sro srr srs ss- ssb ssc ssd ssf ssi ssm sso ssr sss ssu sub suc sud suf sui sum suo sur sus suu ubb ubc ubf ubi ubo ubr ubs ubu ucb ucc ucd ucf uci ucm uco ucr ucs ucu udb udc udd udf udi udm udo udr uds udu ufc ufd uff ufi ufm ufo ufr ufs ufu uib uic uid uif uii uim uio uir uis uiu um- umb umc umd umf umi umm umo umr ums umu uob uoc uod uom uoo uor uos ur- urb urc urd urf uri urm uro urr urs uru usb usc usd usf usi usm uso usr uss usu uuc uum uur