-ic b-u bbb bbc bbd bbe bbi bbl bbm bbu bcb bcc bcd bce bci bcl bcm bcu bdb bdc bdd bde bdi bdl bdm bdu be- beb bec bed bee bei bel bem beu bi- bib bic bid bie bii bil bim biu blb blc bld ble bli bll blm blu bmb bmc bmd bme bmi bml bmm bmu bub buc bud bue bui bul bum buu c-- cbb cbc cbd cbe cbi cbl cbm cbu ccb ccc ccd cce cci ccl ccm ccu cdb cdc cdd cde cdi cdl cdm cdu ce- ceb cec ced cee cei cel cem ceu ci- cib cic cid cie cii cil cim ciu cl- clb clc cld cle cli cll clm clu cmb cmc cmd cme cmi cml cmm cmu cub cuc cud cue cui cul cum cuu dbb dbc dbd dbe dbi dbl dbm dbu dcb dcc dcd dce dci dcl dcm dcu ddb ddc ddd dde ddi ddl ddm ddu de- deb dec ded dee dei del dem deu di- dib dic did die dii dil dim diu dl- dlb dlc dld dle dli dll dlm dlu dmb dmc dmd dme dmi dml dmm dmu dub duc dud due dui dul dum ebb ebc ebd ebe ebi ebl ebm ebu ec- ecb ecc ecd ece eci ecl ecm ecu ed- edb edc edd ede edi edl edm edu eeb eec eed eee eel eem eib eic eid eie eii eil eim eiu elb elc eld ele eli ell elm elu em- emb emc emd eme emi eml emm emu eu- eub euc eud eue eui eul i-d ibb ibc ibd ibe ibi ibl ibm ibu icb icc icd ice ici icl icm icu idb idc idd ide idi idl idm idu ie- iec ied iee iei iel iem iib iic iid iie iii iil iim iiu il- ilb ilc ild ile ili ill ilm ilu im- imb imc imd ime imi iml imm imu iu- iub iuc iud iue iui ium lbb lbc lbd lbe lbi lbl lbm lbu lcb lcc lcd lce lci lcl lcm lcu ldb ldc ldd lde ldi ldl ldm ldu leb lec led lee lei lel lem leu lib lic lid lie lii lil lim liu llb llc lld lle lli lll llm llu lmb lmc lmd lme lmi lml lmm lmu lub luc lud lue lui lul lum luu mbb mbc mbd mbe mbi mbl mbm mbu mc- mcb mcc mcd mce mci mcl mcm mcu mdb mdc mdd mde mdi mdl mdm mdu meb mec med mee mei mel mem meu mi- mib mic mid mie mii mil mim miu mlb mlc mld mle mli mll mlm mlu mmb mmc mmd mme mmi mml mmm mmu mub muc mud mue mui mul mum muu ubb ubc ube ubi ubl ubu ucb ucc ucd uce uci ucl ucm ucu udb udc udd ude udi udl udm udu ueb uec ued uee uei uel uem uib uic uid uie uii uil uim uiu ulb ulc uld ule uli ull ulm ulu um- umb umc umd ume umi uml umm umu uuc uue uum uuu