-ic -ji bbb bbc bbe bbi bbo bcb bcc bce bci bcj bco be- beb bec bee bei beo bi- bib bic bie bii bij bio bjc bji bjj bob boc boe boi boj boo c-- c-j cbb cbc cbe cbi cbj cbo ccb ccc cce cci ccj cco ce- ceb cec cee cei cej ceo ci- cib cic cie cii cij cio cjb cjc co- cob coc coe coi coj coo ebb ebc ebe ebi ebj ebo ec- ecb ecc ece eci ecj eco eeb eec eee eeo eib eic eie eii eij eio ejc eji ejo eo- eob eoc eoe eoi eoo ibb ibc ibe ibi ibj ibo icb icc ice ici icj ico ie- iec iee iei iej iib iic iie iii iij iio ijb ijc ije iji ijo io- iob ioc ioe ioi ioj ioo j-i jbc jbi jbj jbo jcb jcc jce jci jco jeb jec jee jei jej jeo jib jic jie jii jij jio jjb jjc jjj job joc joe joi joj joo o-i ob- obb obc obe obi obj obo oc- ocb occ oci ocj oco oeb oec oee oei oeo oib oic oie oii oio ojb ojc oje oji ojo oo- oob ooc ooi ooo