-ic b-u bbb bbc bbd bbe bbi bbs bbu bcb bcc bcd bce bci bcs bcu bcz bdb bdc bdd bde bdi bds bdu bdz be- beb bec bed bee bei bes beu bez bi- bib bic bid bie bii bis biu biz bsb bsc bsd bse bsi bss bsu bub buc bud bue bui bus buu buz bzd bze bzs bzu bzz c-- cbb cbc cbd cbe cbi cbs cbu cbz ccb ccc ccd cce cci ccs ccu ccz cdb cdc cdd cde cdi cds cdu cdz ce- ceb cec ced cee cei ces ceu cez ci- cib cic cid cie cii cis ciu csb csc csd cse csi css csu csz cub cuc cud cue cui cus cuu cuz cz- czc czd cze dbb dbc dbd dbe dbi dbs dbu dbz dcb dcc dcd dce dci dcs dcu ddb ddc ddd dde ddi dds ddu ddz de- deb dec ded dee dei des deu dez di- dib dic did die dii dis diu diz dsb dsc dsd dse dsi dss dsu dsz dub duc dud due dui dus duz dzb dzd dze dzi dzs dzu ebb ebc ebd ebe ebi ebs ebu ec- ecb ecc ecd ece eci ecs ecu ed- edb edc edd ede edi eds edu eeb eec eed eee ees eib eic eid eie eii eis eiu es- esb esc esd ese esi ess esu eu- eub euc eud eue eui eus eze ezs ezz i-d ibb ibc ibd ibe ibi ibs ibu ibz icb icc icd ice ici ics icu icz idb idc idd ide idi ids idu ie- iec ied iee iei ies iib iic iid iie iii iis iiu is- isb isc isd ise isi iss isu iu- iub iuc iud iue iui ius iuz ize izi izu izz sbb sbc sbd sbe sbi sbs sbu scb scc scd sce sci scs scu sdb sdc sdd sde sdi sds sdu sdz se- seb sec sed see sei ses seu sez sib sic sid sie sii sis siu ss- ssb ssc ssd sse ssi sss ssu ssz sub suc sud sue sui sus suu suz szd sze szi szu ubb ubc ube ubi ubs ubu ucb ucc ucd uce uci ucs ucu udb udc udd ude udi uds udu ueb uec ued uee uei ues uib uic uid uie uii uis uiu usb usc usd use usi uss usu usz uuc uue uus uuu uzb uzi uzu zbb zbc zbs zce zcs zds zeb zec zed zee zes zez zib zid zie zis ziz zse zsi zsu zsz zub zuc zud zui zus zuz zzs zzz