-er bbb bbe bbh bbi bbo bbr bbs be- beb bee beh bei beo ber bes bez bhb bhe bhh bhi bho bhr bhs bi- bib bie bih bii bio bir bis biz bob boe boh boi boo bor bos boz brb bre brh bri bro brr brs brz bsb bse bsh bsi bso bsr bss bze bzh bzo bzr bzs bzz ebb ebe ebh ebi ebo ebr ebs eeb eee eeo eer ees ehb ehe ehh ehi eho ehr ehs eib eie eii eio eir eis eo- eob eoe eoh eoi eoo eor eos erb ere erh eri ero err ers erz es- esb ese esh esi eso esr ess eze ezh ezo ezr ezs ezz h-i hbb hbe hbh hbi hbo hbr hbs hbz he- heb hee heh hei heo her hes hez hhb hhe hhh hhi hho hhr hhs hhz hib hie hih hii hio hir his hob hoe hoh hoi hoo hor hos hr- hrb hre hrh hri hro hrr hrs hrz hsb hse hsh hsi hsr hss hsz hze hzo hzs ibb ibe ibh ibi ibo ibr ibs ibz ie- iee iei ier ies ihb ihe ihh ihi iho ihr ihs iib iie iih iii iio iir iis io- iob ioe ioh ioi ioo ior ios ir- irb ire iri iro irr irs is- isb ise ish isi iso isr iss ize izh izi izo izz o-i ob- obb obe obh obi obo obr obs oeb oee oeh oei oeo oer oes ohe ohh ohi oho ohr ohs oib oie oii oio oir ois oiz oo- oob ooh ooi ooo oor oos or- orb ore orh ori oro orr ors orz os- osb ose osh osi oso osr oss oze ozo ozs ozz rbb rbe rbh rbi rbo rbr rbs re- reb ree reh rei reo rer res rez rh- rhb rhe rhh rhi rho rhr rhs rib rie rih rii rio rir ris riz rob roe roh roi roo ror ros roz rrb rrh rri rrr rrs rsb rse rsh rsi rso rsr rss rzb rze rzo sbb sbe sbh sbi sbo sbr sbs se- seb see seh sei seo ser ses sez sh- shb she shh shi sho shr shs sib sie sih sii sio sir sis sob soe soh soi soo sor sos soz sr- srb sre srh sri sro srr srs ss- ssb sse ssh ssi sso ssr sss ssz sze szi szr zbb zbr zbs zeb zee zeh zeo zer zes zez zhe zhi zho zhr zhs zib zie zio zir zis ziz zo- zob zoe zoi zoo zor zos zrh zro zrs zse zsh zsi zsz zzr zzs zzz