-ey -ic bbb bbc bbe bbf bbi bbo bby bcb bcc bce bcf bci bco bcy be- beb bec bee bef bei beo bey bfb bfc bfe bff bfi bfo bfy bi- bib bic bie bif bii bio biy bob boc boe bof boi boo boy by- byc bye byf byi byo c-- cbb cbc cbe cbf cbi cbo cby ccb ccc cce ccf cci cco ce- ceb cec cee cef cei ceo cey cfb cfc cfe cff cfi cfo ci- cib cic cie cif cii cio co- cob coc coe cof coi coo coy cyb cyc cye cyf cyo ebb ebc ebe ebf ebi ebo eby ec- ecb ecc ece ecf eci eco eeb eec eee eef eeo eey ef- efb efc efe eff efi efo eib eic eie eif eii eio eo- eob eoc eoe eof eoi eoo eyc eye eyo fbb fbc fbe fbf fbi fbo fcb fcc fce fcf fci fco fcy feb fec fee fef fei feo fey ffc ffe fff ffi ffo ffy fib fic fie fif fii fob foc foe fof foi foo foy fy- fyb fyc fye fyi fyo i-f ibb ibc ibe ibf ibi ibo iby icb icc ice icf ici ico icy ie- iec iee ief iei iey ifb ifc ife iff ifi ifo ify iib iic iie iif iii iio io- iob ioc ioe iof ioi ioo iyc iye iyo iyy o-i ob- obb obc obe obf obi obo oby oc- ocb occ ocf oci oco oeb oec oee oef oei oeo oey of- ofb ofc ofe off ofi ofo oib oic oie oif oii oio oo- oob ooc oof ooi ooo oye oyi oyo ybc ybe ybf ybi yby ycc yce ycf yci yco ycy yeb yec yee yef yei yeo yey yfc yfe yff yie yif yii yio yob yoc yoe yof yoi yoo yoy yyb yyc yye yyf yyy