b-u bbb bbd bbi bbn bbo bbu bby bdb bdd bdi bdo bdu bdy bdz bi- bib bid bii bin bio biu biy biz bnb bnd bni bnn bno bnu bnz bob bod boi bon boo bou boy boz bub bud bui bun buo buu buy buz by- byd byi byn byo byu byz bzd bzn bzo bzu bzz dbb dbd dbi dbn dbo dbu dby dbz ddb ddd ddi ddn ddo ddu ddy ddz di- dib did dii din dio diu diy diz dnb dnd dni dnn dno dny dnz dob dod doi don doo dou doy doz dub dud dui dun duo duy duz dy- dyb dyd dyn dyo dyu dyy dzb dzd dzi dzo dzu i-d ibb ibd ibi ibn ibo ibu iby ibz 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 iuz iyo iyy izi izo izu izy izz n-i nbb nbd nbi nbn nbo nbu ndb ndd ndi ndn ndo ndu ndy nib nid nii nin nio niu niz nnb nni nnn nno nnu nnz no- nob nod noi non noo nou noy noz nub nud nui nun nuo nuu nuy nyd nyn nyo nyu nyy nzb nzd nzi nzo nzz o-i ob- obb obd obi obn obo obu oby odb odd odi odn odo odu oib oid oii oin oio oiu oiz on- onb ond oni onn ono onu ony oo- oob ood ooi oon ooo ou- oud oui oun ouo oyd oyi oyo ozo ozu ozz 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 uzb uzi uzo uzu ybi yby ybz ydn ydo ydy yid yii yin yio yiz ynd ynn ynu yny yob yod yoi yon yoo you yoy yud yui yun yuo yuu yuy yyb yyu yyy yyz yzb yzu yzy zbb zby zib zid zin zio ziz znd znn zno zo- zob zod zoi zon zoo zou zub zud zui zun zuz zzy zzz