-ic b-u bbb bbc bbd bbi bbm bbu bby bcb bcc bcd bci bcm bcu bcy bdb bdc bdd bdi bdm bdu bdy bi- bib bic bid bii bim biu biy bmb bmc bmd bmi bmm bmu bub buc bud bui bum buu buy by- byc byd byi bym byu c-- cbb cbc cbd cbi cbm cbu cby ccb ccc ccd cci ccm ccu cdb cdc cdd cdi cdm cdu cdy ci- cib cic cid cii cim ciu cmb cmc cmd cmi cmm cmu cmy cub cuc cud cui cum cuu cuy cyb cyc cyd cym dbb dbc dbd dbi dbm dbu dby dcb dcc dcd dci dcm dcu ddb ddc ddd ddi ddm ddu ddy di- dib dic did dii dim diu diy dmb dmc dmd dmi dmm dmu dub duc dud dui dum duy dy- dyb dyc dyd dym dyu dyy i-d ibb ibc ibd ibi ibm ibu iby icb icc icd ici icm icu icy idb idc idd idi idm idu idy iib iic iid iii iim iiu im- imb imc imd imi imm imu imy iu- iub iuc iud iui ium iyc iym iyy mbb mbc mbd mbi mbm mbu mc- mcb mcc mcd mci mcm mcu mdb mdc mdd mdi mdm mdu mdy mi- mib mic mid mii mim miu miy mmb mmc mmd mmi mmm mmu mub muc mud mui mum muu muy my- myb myc myd mym myu ubb ubc ubi ubu uby ucb ucc ucd uci ucm ucu udb udc udd udi udm udu uib uic uid uii uim uiu um- umb umc umd umi umm umu uuc uum uuu uyc uyi uyu ybc ybi ybm yby ycc ycd yci ycu ycy ydy yid yii yim ymc ymi ymm yud yui yum yuu yuy yyb yyc yyu yyy