-ic b-u bbb bbc bbd bbe bbi bbl bbu bcb bcc bcd bce bci bcl bcu bcz bdb bdc bdd bde bdi bdl bdu bdz be- beb bec bed bee bei bel beu bez bi- bib bic bid bie bii bil biu biz blb blc bld ble bli bll blu blz bub buc bud bue bui bul buu buz bzd bze bzu bzz c-- cbb cbc cbd cbe cbi cbl cbu cbz ccb ccc ccd cce cci ccl ccu ccz cdb cdc cdd cde cdi cdl cdu cdz ce- ceb cec ced cee cei cel ceu cez ci- cib cic cid cie cii cil ciu cl- clb clc cld cle cli cll clu clz cub cuc cud cue cui cul cuu cuz cz- czc czd cze dbb dbc dbd dbe dbi dbl dbu dbz dcb dcc dcd dce dci dcl dcu ddb ddc ddd dde ddi ddl ddu ddz de- deb dec ded dee dei del deu dez di- dib dic did die dii dil diu diz dl- dlb dlc dld dle dli dll dlu dub duc dud due dui dul duz dzb dzd dze dzi dzu ebb ebc ebd ebe ebi ebl ebu ec- ecb ecc ecd ece eci ecl ecu ed- edb edc edd ede edi edl edu eeb eec eed eee eel eib eic eid eie eii eil eiu elb elc eld ele eli ell elu elz eu- eub euc eud eue eui eul eze ezz i-d ibb ibc ibd ibe ibi ibl ibu ibz icb icc icd ice ici icl icu icz idb idc idd ide idi idl idu ie- iec ied iee iei iel iib iic iid iie iii iil iiu il- ilb ilc ild ile ili ill ilu ilz iu- iub iuc iud iue iui iuz ize izi izu izz lbb lbc lbd lbe lbi lbl lbu lcb lcc lcd lce lci lcl lcu ldb ldc ldd lde ldi ldl ldu leb lec led lee lei lel leu lez lib lic lid lie lii lil liu liz llb llc lld lle lli lll llu llz lub luc lud lue lui lul luu luz lzi lzu ubb ubc ube ubi ubl ubu ucb ucc ucd uce uci ucl ucu udb udc udd ude udi udl udu ueb uec ued uee uei uel uib uic uid uie uii uil uiu ulb ulc uld ule uli ull ulu uuc uue uuu uzb uzi uzu zbb zbc zbl zce zcl zeb zec zed zee zel zez zib zid zie zil ziz zub zuc zud zui zul zuz zzz