b-u bbb bbd bbe bbi bbo bbt bbu bbx bdb bdd bde bdi bdo bdt bdu bdx be- beb bed bee bei beo bet beu bex bi- bib bid bie bii bio bit biu bix bob bod boe boi boo bot bou box btb btd bte bti bto btt btu btx bub bud bue bui buo but buu bux bxb bxd bxi bxo bxx dbb dbd dbe dbi dbo dbt dbu dbx ddb ddd dde ddi ddo ddt ddu ddx de- deb ded dee dei deo det deu dex di- dib did die dii dio dit diu dix dob dod doe doi doo dot dou dox dtb dtd dte dti dto dtt dtu dtx dub dud due dui duo dut dux dxd dxi dxo dxt dxx ebb ebd ebe ebi ebo ebt ebu ebx ed- edb edd ede edi edo edt edu edx eeb eed eee eeo eet eex eib eid eie eii eio eit eiu eix eo- eob eod eoe eoi eoo eot eou etb etd ete eti eto ett etu etx eu- eub eud eue eui eut eux ex- exd exe exi exo ext exu exx i-d ibb ibd ibe ibi ibo ibt ibu ibx idb idd ide idi ido idt idu idx ie- ied iee iei iet iex iib iid iie iii iio iit iiu iix io- iob iod ioe ioi ioo iot iou itb itd ite iti ito itt itu itx iu- iub iud iue iui iut ixe ixi o-i ob- obb obd obe obi obo obt obu obx odb odd ode odi odo odt odu oeb oed oee oei oeo oet oex oib oid oie oii oio oit oiu oo- oob ood ooi ooo oot oox ot- otb otd ote oti oto ott otu ou- oud oue oui ouo out ox- oxb oxi oxo oxt oxx t-x tbb tbd tbe tbi tbo tbt tbu tdb tdd tde tdi tdo tdt tdu tdx te- teb ted tee tei teo tet teu tex tib tid tie tii tio tit tiu tix to- tob tod toe toi too tot tou tox ttb ttd tte tti tto ttt ttu ttx tub tud tue tui tuo tut tuu tux txe txi txt txu ubb ube ubi ubo ubt ubu ubx udb udd ude udi udo udt udu udx ueb ued uee uei uet uib uid uie uii uio uit uiu uob uod uoe uoo uot uox utb utd ute uti uto utt utu utx uue uut uuu uxb uxo uxt uxu xbe xbx xdb xde xdi xdt xed xee xet xeu xex xie xii xio xit xiu xix xod xoi xoo xot xox xti xtx xue xui xxi xxo xxx