bbb bbe bbg bbi bbo bbs bbt be- beb bee beg bei beo bes bet bgb bge bgg bgi bgo bgs bgt bi- bib bie big bii bio bis bit bob boe bog boi boo bos bot bsb bse bsg bsi bso bss bst btb bte btg bti bto bts btt ebb ebe ebg ebi ebo ebs ebt eeb eee eeg eeo ees eet egb ege egg egi ego egs egt eib eie eig eii eio eis eit eo- eob eoe eog eoi eoo eos eot es- esb ese esg esi eso ess est etb ete etg eti eto ets ett gbe gbg gbi gbo gbs gbt ge- geb gee geg gei geo ges get ggb ggg ggi ggo ggs ggt gib gie gig gii gio gis git gob goe gog goi goo gos got gsb gse gsg gsi gso gss gst gtb gte gtg gti gto gts gtt ibb ibe ibg ibi ibo ibs ibt ie- iee ieg iei ies iet igb ige igg igi igo igs igt iib iie iii iio iis iit io- iob ioe iog ioi ioo ios iot is- isb ise isg isi iso iss ist itb ite itg iti ito its itt o-i ob- obb obe obg obi obo obs obt oeb oee oeg oei oeo oes oet oge ogg ogi ogo ogs ogt oib oie oii oio ois oit oo- oob oog ooi ooo oos oot os- osb ose osg osi oso oss ost ot- otb ote otg oti oto ots ott sbb sbe sbg sbi sbo sbs sbt se- seb see seg sei seo ses set sgb sge sgg sgi sgo sgs sgt sib sie sig sii sio sis sit sob soe sog soi soo sos sot ss- ssb sse ssg ssi sso sss sst stb ste stg sti sto sts stt tbb tbe tbg tbi tbo tbs tbt te- teb tee teg tei teo tes tet tgb tge tgg tgi tgo tgs tgt tib tie tig tii tio tis tit to- tob toe tog toi too tos tot tsb tse tsg tsi tso tss tst ttb tte ttg tti tto tts ttt