-ic b-u bbb bbc bbg bbi bbo bbs bbu bcb bcc bcg bci bco bcs bcu bgb bgc bgg bgi bgo bgs bgu bi- bib bic big bii bio bis biu bob boc bog boi boo bos bou bsb bsc bsg bsi bso bss bsu bub buc bug bui buo bus buu c-- cbb cbc cbg cbi cbo cbs cbu ccb ccc ccg cci cco ccs ccu cgb cgc cgg cgi cgo cgs cgu ci- cib cic cig cii cio cis ciu co- cob coc cog coi coo cos cou csb csc csg csi cso css csu cub cuc cug cui cuo cus cuu gbc gbg gbi gbo gbs gbu gcb gcc gcg gci gco gcs gcu ggb ggc ggg ggi ggo ggs ggu gib gic gig gii gio gis giu gob goc gog goi goo gos gou gsb gsc gsg gsi gso gss gsu gu- gub guc gug gui guo gus guu ibb ibc ibg ibi ibo ibs ibu icb icc icg ici ico ics icu igb igc igg igi igo igs igu iib iic iii iio iis iiu io- iob ioc iog ioi ioo ios iou is- isb isc isg isi iso iss isu iu- iub iuc iug iui ius o-i ob- obb obc obg obi obo obs obu oc- ocb occ ocg oci oco ocs ocu ogc ogg ogi ogo ogs oib oic oii oio ois oiu oo- oob ooc oog ooi ooo oos os- osb osc osg osi oso oss osu ou- ouc oui ouo ous sbb sbc sbg sbi sbo sbs sbu scb scc scg sci sco scs scu sgb sgc sgg sgi sgo sgs sgu sib sic sig sii sio sis siu sob soc sog soi soo sos sou ss- ssb ssc ssg ssi sso sss ssu sub suc sug sui suo sus suu ubb ubc ubg ubi ubo ubs ubu ucb ucc ucg uci uco ucs ucu ugb ugc ugg ugi ugo ugs ugu uib uic uig uii uio uis uiu uob uoc uog uoo uos usb usc usg usi uso uss usu uuc uug uus uuu