b-u bbb bbd bbi bbn bbo bbu bby bdb bdd bdi bdo bdu bdy bi- bib bid bii bin bio biu biy bnb bnd bni bnn bno bnu bob bod boi bon boo bou boy bub bud bui bun buo buu buy by- byd byi byn byo byu dbb dbd dbi dbn dbo dbu dby ddb ddd ddi ddn ddo ddu ddy di- dib did dii din dio diu diy dnb dnd dni dnn dno dny dob dod doi don doo dou doy dub dud dui dun duo duy dy- dyb dyd dyn dyo dyu dyy i-d ibb ibd ibi ibn ibo ibu iby idb idd idi idn ido idu idy iib iid iii iin iio iiu in- inb ind ini inn ino inu iny io- iob iod ioi ion ioo iou iu- iub iud iui iyo iyy n-i nbb nbd nbi nbn nbo nbu ndb ndd ndi ndn ndo ndu ndy nib nid nii nin nio niu nnb nni nnn nno nnu no- nob nod noi non noo nou noy nub nud nui nun nuo nuu nuy nyd nyn nyo nyu nyy o-i ob- obb obd obi obn obo obu oby odb odd odi odn odo odu oib oid oii oin oio oiu on- onb ond oni onn ono onu ony oo- oob ood ooi oon ooo ou- oud oui oun ouo oyd oyi oyo ubb ubi ubn ubo ubu uby udb udd udi udn udo udu uib uid uii uin uio uiu un- unb und uni unn uno unu uny uob uod uon uoo uun uuu uyi uyo uyu ybi yby ydn ydo ydy yid yii yin yio ynd ynn ynu yny yob yod yoi yon yoo you yoy yud yui yun yuo yuu yuy yyb yyu yyy