-ic b-u bbb bbc bbd bbg bbi bbo bbr bbs bbu bcb bcc bcd bcg bci bco bcr bcs bcu bdb bdc bdd bdg bdi bdo bdr bds bdu bgb bgc bgd bgg bgi bgo bgr bgs bgu bi- bib bic bid big bii bio bir bis biu bob boc bod bog boi boo bor bos bou brb brd brg bri bro brr brs bru bsb bsc bsd bsg bsi bso bsr bss bsu bub buc bud bug bui buo bur bus buu c-- cbb cbc cbd cbg cbi cbo cbr cbs cbu ccb ccc ccd ccg cci cco ccr ccs ccu cdb cdc cdd cdg cdi cdo cdr cds cdu cgb cgc cgd cgg cgi cgo cgr cgs cgu ci- cib cic cid cig cii cio cir cis ciu co- cob coc cod cog coi coo cor cos cou crb crc crd crg cri cro crr crs cru csb csc csd csg csi cso csr css csu cub cuc cud cug cui cuo cur cus cuu dbb dbc dbd dbg dbi dbo dbr dbs dbu dcb dcc dcd dcg dci dco dcr dcs dcu ddb ddc ddd ddg ddi ddo ddr dds ddu dgc dgd dgg dgi dgr dgs dgu di- dib dic did dig dii dio dir dis diu dob doc dod dog doi doo dor dos dou drb drc drd drg dri dro drr drs dru dsb dsc dsd dsg dsi dso dsr dss dsu dub duc dud dug dui duo dur dus g-d gbc gbd gbg gbi gbo gbr gbs gbu gcb gcc gcd gcg gci gco gcr gcs gcu gdb gdc gdd gdi gdo gdr gds gdu ggb ggc ggd ggg ggi ggo ggr ggs ggu gib gic gid gig gii gio gir gis giu gob goc god gog goi goo gor gos gou grb grc grd grg gri gro grr grs gru gsb gsc gsd gsg gsi gso gsr gss gsu gu- gub guc gud gug gui guo gur gus guu i-d ibb ibc ibd ibg ibi ibo ibr ibs ibu icb icc icd icg ici ico icr ics icu idb idc idd idg idi ido idr ids idu igb igc igd igg igi igo igr igs igu iib iic iid iii iio iir iis iiu io- iob ioc iod iog ioi ioo ior ios iou ir- irb irc ird irg iri iro irr irs iru is- isb isc isd isg isi iso isr iss isu iu- iub iuc iud iug iui iur ius o-i ob- obb obc obd obg obi obo obr obs obu oc- ocb occ ocd ocg oci oco ocr ocs ocu odb odc odd odg odi odo odr ods odu ogc ogd ogg ogi ogo ogs oib oic oid oii oio oir ois oiu oo- oob ooc ood oog ooi ooo oor oos or- orb orc ord org ori oro orr ors oru os- osb osc osd osg osi oso osr oss osu ou- ouc oud oui ouo our ous rbb rbc rbd rbg rbi rbo rbr rbs rbu rcb rcc rcd rcg rci rco rcr rcs rcu rdb rdc rdd rdg rdi rdo rdr rds rdu rgb rgc rgd rgg rgi rgo rgr rgs rib ric rid rig rii rio rir ris rob roc rod rog roi roo ror ros rou rrb rrc rrd rrg rri rrr rrs rru rsb rsc rsd rsg rsi rso rsr rss rsu rub ruc rud rug rui ruo rur rus ruu sbb sbc sbd sbg sbi sbo sbr sbs sbu scb scc scd scg sci sco scr scs scu sdb sdc sdd sdg sdi sdo sdr sds sdu sgb sgc sgd sgg sgi sgo sgr sgs sgu sib sic sid sig sii sio sir sis siu sob soc sod sog soi soo sor sos sou sr- srb src srd srg sri sro srr srs ss- ssb ssc ssd ssg ssi sso ssr sss ssu sub suc sud sug sui suo sur sus suu ubb ubc ubg ubi ubo ubr ubs ubu ucb ucc ucd ucg uci uco ucr ucs ucu udb udc udd udg udi udo udr uds udu ugb ugc ugg ugi ugo ugr ugs ugu uib uic uid uig uii uio uir uis uiu uob uoc uod uog uoo uor uos ur- urb urc urd urg uri uro urr urs uru usb usc usd usg usi uso usr uss usu uuc uug uur uus uuu