b-u bbb bbd bbe bbi bbn bbo bbs bbt bbu bdb bdd bde bdi bdo bds bdt bdu be- beb bed bee bei ben beo bes bet beu bi- bib bid bie bii bin bio bis bit biu bnb bnd bne bni bnn bno bns bnt bnu bob bod boe boi bon boo bos bot bou bsb bsd bse bsi bsn bso bss bst bsu btb btd bte bti btn bto bts btt btu bub bud bue bui bun buo bus but buu dbb dbd dbe dbi dbn dbo dbs dbt dbu ddb ddd dde ddi ddn ddo dds ddt ddu de- deb ded dee dei den deo des det deu di- dib did die dii din dio dis dit diu dnb dnd dne dni dnn dno dns dnt dob dod doe doi don doo dos dot dou dsb dsd dse dsi dsn dso dss dst dsu dtb dtd dte dti dtn dto dts dtt dtu dub dud due dui dun duo dus dut ebb ebd ebe ebi ebn ebo ebs ebt ebu ed- edb edd ede edi edn edo eds edt edu eeb eed eee een eeo ees eet eib eid eie eii ein eio eis eit eiu en- enb end ene eni enn eno ens ent enu eo- eob eod eoe eoi eon eoo eos eot eou es- esb esd ese esi esn eso ess est esu etb etd ete eti etn eto ets ett etu eu- eub eud eue eui eun eus eut i-d ibb ibd ibe ibi ibn ibo ibs ibt ibu idb idd ide idi idn ido ids idt idu ie- ied iee iei ien ies iet iib iid iie iii iin iio iis iit iiu in- inb ind ine ini inn ino ins int inu io- iob iod ioe ioi ion ioo ios iot iou is- isb isd ise isi isn iso iss ist isu itb itd ite iti itn ito its itt itu iu- iub iud iue iui ius iut n-i nbb nbd nbe nbi nbn nbo nbs nbt nbu ndb ndd nde ndi ndn ndo nds ndt ndu ne- neb ned nee nei nen neo nes net neu nib nid nie nii nin nio nis nit niu nnb nne nni nnn nno nns nnt nnu no- nob nod noe noi non noo nos not nou nsb nsd nse nsi nsn nso nss nst nsu ntb ntd nte nti ntn nto nts ntt ntu nub nud nue nui nun nuo nus nut nuu o-i ob- obb obd obe obi obn obo obs obt obu odb odd ode odi odn odo ods odt odu oeb oed oee oei oen oeo oes oet oib oid oie oii oin oio ois oit oiu on- onb ond one oni onn ono ons ont onu oo- oob ood ooi oon ooo oos oot os- osb osd ose osi osn oso oss ost osu ot- otb otd ote oti otn oto ots ott otu ou- oud oue oui oun ouo ous out sbb sbd sbe sbi sbn sbo sbs sbt sbu sdb sdd sde sdi sdn sdo sds sdt sdu se- seb sed see sei sen seo ses set seu sib sid sie sii sin sio sis sit siu snb snd sne sni snn sno sns snt snu sob sod soe soi son soo sos sot sou ss- ssb ssd sse ssi ssn sso sss sst ssu stb std ste sti stn sto sts stt stu sub sud sue sui sun suo sus sut suu tbb tbd tbe tbi tbn tbo tbs tbt tbu tdb tdd tde tdi tdn tdo tds tdt tdu te- teb ted tee tei ten teo tes tet teu tib tid tie tii tin tio tis tit tiu tnb tnd tne tni tnn tno tns tnt to- tob tod toe toi ton too tos tot tou tsb tsd tse tsi tsn tso tss tst tsu ttb ttd tte tti ttn tto tts ttt ttu tub tud tue tui tun tuo tus tut tuu ubb ube ubi ubn ubo ubs ubt ubu udb udd ude udi udn udo uds udt udu ueb ued uee uei uen ues uet uib uid uie uii uin uio uis uit uiu un- unb und une uni unn uno uns unt unu uob uod uoe uon uoo uos uot usb usd use usi usn uso uss ust usu utb utd ute uti utn uto uts utt utu uue uun uus uut uuu