-er -th bbb bbd bbe bbh bbi bbk bbo bbr bbs bbt bdb bdd bde bdh bdi bdk bdo bdr bds bdt be- beb bed bee beh bei bek beo ber bes bet bhb bhd bhe bhh bhi bhk bho bhr bhs bht bi- bib bid bie bih bii bik bio bir bis bit bkb bke bkk bko bkr bks bkt bob bod boe boh boi bok boo bor bos bot brb brd bre brh bri brk bro brr brs brt bsb bsd bse bsh bsi bsk bso bsr bss bst btb btd bte bth bti btk bto btr bts btt dbb dbd dbe dbh dbi dbk dbo dbr dbs dbt ddb ddd dde ddh ddi ddk ddo ddr dds ddt de- deb ded dee deh dei dek deo der des det dh- dhb dhd dhe dhh dhi dhk dho dhr dhs dht di- dib did die dih dii dik dio dir dis dit dkb dke dki dkk dko dkr dks dkt dob dod doe doh doi dok doo dor dos dot drb drd dre dri drk dro drr drs drt dsb dsd dse dsh dsi dsk dso dsr dss dst dtb dtd dte dth dti dtk dto dtr dts dtt ebb ebd ebe ebh ebi ebk ebo ebr ebs ebt ed- edb edd ede edh edi edk edo edr eds edt eeb eed eee eek eeo eer ees eet ehb ehd ehe ehh ehi eho ehr ehs eht eib eid eie eii eik eio eir eis eit ekb ekd eke ekh eki eko ekr eks ekt eo- eob eod eoe eoh eoi eok eoo eor eos eot erb erd ere erh eri erk ero err ers ert es- esb esd ese esh esi esk eso esr ess est etb etd ete eth eti etk eto etr ets ett h-i hbb hbd hbe hbh hbi hbk hbo hbr hbs hbt hdb hdd hde hdh hdi hdk hdo hdr hds hdt he- heb hed hee heh hei hek heo her hes het hhb hhd hhe hhh hhi hhk hho hhr hhs hht hib hid hie hih hii hik hio hir his hit hkb hkd hkh hki hkk hko hkr hks hkt hob hod hoe hoh hoi hok hoo hor hos hot hr- hrb hrd hre hrh hri hrk hro hrr hrs hrt hsb hsd hse hsh hsi hsk hsr hss hst htb htd hte hth hti htk hto htr hts htt i-d ibb ibd ibe ibh ibi ibk ibo ibr ibs ibt idb idd ide idh idi idk ido idr ids idt ie- ied iee iei iek ier ies iet ihb ihd ihe ihh ihi ihk iho ihr ihs iht iib iid iie iih iii iio iir iis iit ikb ike iki ikk iko ikr iks ikt io- iob iod ioe ioh ioi ioo ior ios iot ir- irb ird ire iri irk iro irr irs irt is- isb isd ise ish isi isk iso isr iss ist itb itd ite ith iti itk ito its itt k-t kbb kbd kbe kbh kbi kbk kbo kbr kbs kdb kde kdh kdk kdo kdr kds kdt ke- keb ked kee keh kei kek keo ker kes ket khe khh khi khk kho khr khs kib kid kie kih kii kik kio kir kis kit kkb kke kkh kki kkk kkr kks kkt kob kod koe koh koi kok koo kor kos kot krd kri krk kro krr krs krt ksb ksd kse ksh ksi ksk kso ksr kss kst ktb kte kth ktk kto ktr kts ktt o-i ob- obb obd obe obh obi obk obo obr obs obt odb odd ode odh odi odo odr ods odt oeb oed oee oeh oei oeo oer oes oet ohd ohe ohh ohi oho ohr ohs oht oib oid oie oii oik oio oir ois oit okb okd oke oki okk oko okr oks oo- oob ood ooh ooi ook ooo oor oos oot or- orb ord ore orh ori ork oro orr ors ort os- osb osd ose osh osi osk oso osr oss ost ot- otb otd ote oth oti otk oto otr ots ott rbb rbd rbe rbh rbi rbk rbo rbr rbs rbt rdb rdd rde rdh rdi rdo rdr rds rdt re- reb red ree reh rei rek reo rer res ret rh- rhb rhd rhe rhh rhi rho rhr rhs rht rib rid rie rih rii rik rio rir ris rit rkb rke rkk rko rks rkt rob rod roe roh roi rok roo ror ros rot rrb rrd rrh rri rrk rrr rrs rrt rsb rsd rse rsh rsi rsk rso rsr rss rst rtb rtd rte rti rtk rto rtr rts rtt sbb sbd sbe sbh sbi sbk sbo sbr sbs sbt sdb sdd sde sdh sdi sdk sdo sdr sds sdt se- seb sed see seh sei sek seo ser ses set sh- shb shd she shh shi shk sho shr shs sht sib sid sie sih sii sik sio sir sis sit sk- skb skd ske skh ski skk sko skr sks skt sob sod soe soh soi sok soo sor sos sot sr- srb srd sre srh sri srk sro srr srs srt ss- ssb ssd sse ssh ssi ssk sso ssr sss sst stb std ste sth sti stk sto str sts stt tbb tbd tbe tbh tbi tbk tbo tbr tbs tbt tdb tdd tde tdh tdi tdk tdo tdr tds tdt te- teb ted tee teh tei tek teo ter tes tet th- thb thd the thh thi thk tho thr ths tht tib tid tie tih tii tik tio tir tis tit tkb tke tkk tko tkr tks tkt to- tob tod toe toh toi tok too tor tos tot trb trd tre trh tri trk tro trr trs trt tsb tsd tse tsh tsi tsk tso tsr tss tst ttb ttd tte tth tti ttk tto ttr tts ttt