b-u bbb bbd bbi bbn bbo bbt bbu bby bdb bdd bdi bdo bdt bdu bdy bi- bib bid bii bin bio bit biu biy bnb bnd bni bnn bno bnt bnu bob bod boi bon boo bot bou boy btb btd bti btn bto btt btu bty bub bud bui bun buo but buu buy by- byd byi byn byo byt byu dbb dbd dbi dbn dbo dbt dbu dby ddb ddd ddi ddn ddo ddt ddu ddy di- dib did dii din dio dit diu diy dnb dnd dni dnn dno dnt dny dob dod doi don doo dot dou doy dtb dtd dti dtn dto dtt dtu dty dub dud dui dun duo dut duy dy- dyb dyd dyn dyo dyu dyy i-d ibb ibd ibi ibn ibo ibt ibu iby idb idd idi idn ido idt idu idy iib iid iii iin iio iit iiu in- inb ind ini inn ino int inu iny io- iob iod ioi ion ioo iot iou itb itd iti itn ito itt itu ity iu- iub iud iui iut iyo iyt iyy n-i nbb nbd nbi nbn nbo nbt nbu ndb ndd ndi ndn ndo ndt ndu ndy nib nid nii nin nio nit niu nnb nni nnn nno nnt nnu no- nob nod noi non noo not nou noy ntb ntd nti ntn nto ntt ntu nub nud nui nun nuo nut nuu nuy nyd nyn nyo nyt nyu nyy o-i ob- obb obd obi obn obo obt obu oby odb odd odi odn odo odt odu oib oid oii oin oio oit oiu on- onb ond oni onn ono ont onu ony oo- oob ood ooi oon ooo oot ot- otb otd oti otn oto ott otu ou- oud oui oun ouo out oyd oyi oyo tbb tbd tbi tbn tbo tbt tbu tdb tdd tdi tdn tdo tdt tdu tdy tib tid tii tin tio tit tiu tiy tnb tnd tni tnn tno tnt to- tob tod toi ton too tot tou toy ttb ttd tti ttn tto ttt ttu tty tub tud tui tun tuo tut tuu tuy tyd tyn tyo tyt ubb ubi ubn ubo ubt ubu uby udb udd udi udn udo udt udu uib uid uii uin uio uit uiu un- unb und uni unn uno unt unu uny uob uod uon uoo uot utb utd uti utn uto utt utu uty uun uut uuu uyi uyo uyu ybi yby ydn ydo ydt ydy yid yii yin yio yit ynd ynn ynu yny yob yod yoi yon yoo yot you yoy ytd ytn yto ytt ytu yud yui yun yuo yut yuu yuy yyb yyt yyu yyy