bbb bbe bbg bbi bbn bbo bbs bbt be- beb bee beg bei ben beo bes bet bgb bge bgg bgi bgn bgo bgs bgt bi- bib bie big bii bin bio bis bit bnb bne bng bni bnn bno bns bnt bob boe bog boi bon boo bos bot bsb bse bsg bsi bsn bso bss bst btb bte btg bti btn bto bts btt ebb ebe ebg ebi ebn ebo ebs ebt eeb eee eeg een eeo ees eet egb ege egg egi egn ego egs egt eib eie eig eii ein eio eis eit en- enb ene eng eni enn eno ens ent eo- eob eoe eog eoi eon eoo eos eot es- esb ese esg esi esn eso ess est etb ete etg eti etn eto ets ett gbe gbg gbi gbn gbo gbs gbt ge- geb gee geg gei gen geo ges get ggb ggg ggi ggn ggo ggs ggt gib gie gig gii gin gio gis git gnb gne gni gnn gno gns gnt gob goe gog goi gon goo gos got gsb gse gsg gsi gsn gso gss gst gtb gte gtg gti gtn gto gts gtt ibb ibe ibg ibi ibn ibo ibs ibt ie- iee ieg iei ien ies iet igb ige igg igi ign igo igs igt iib iie iii iin iio iis iit in- inb ine ing ini inn ino ins int io- iob ioe iog ioi ion ioo ios iot is- isb ise isg isi isn iso iss ist itb ite itg iti itn ito its itt n-i nbb nbe nbg nbi nbn nbo nbs nbt ne- neb nee neg nei nen neo nes net ngb nge ngg ngi ngn ngo ngs ngt nib nie nig nii nin nio nis nit nnb nne nng nni nnn nno nns nnt no- nob noe nog noi non noo nos not nsb nse nsg nsi nsn nso nss nst ntb nte ntg nti ntn nto nts ntt o-i ob- obb obe obg obi obn obo obs obt oeb oee oeg oei oen oeo oes oet oge ogg ogi ogn ogo ogs ogt oib oie oii oin oio ois oit on- onb one ong oni onn ono ons ont oo- oob oog ooi oon ooo oos oot os- osb ose osg osi osn oso oss ost ot- otb ote otg oti otn oto ots ott sbb sbe sbg sbi sbn sbo sbs sbt se- seb see seg sei sen seo ses set sgb sge sgg sgi sgn sgo sgs sgt sib sie sig sii sin sio sis sit snb sne sng sni snn sno sns snt sob soe sog soi son soo sos sot ss- ssb sse ssg ssi ssn sso sss sst stb ste stg sti stn sto sts stt tbb tbe tbg tbi tbn tbo tbs tbt te- teb tee teg tei ten teo tes tet tgb tge tgg tgi tgn tgo tgs tgt tib tie tig tii tin tio tis tit tnb tne tng tni tnn tno tns tnt to- tob toe tog toi ton too tos tot tsb tse tsg tsi tsn tso tss tst ttb tte ttg tti ttn tto tts ttt