-er -ic bbb bbc bbe bbi bbo bbr bcb bcc bce bci bco bcr bcz be- beb bec bee bei beo ber bez bi- bib bic bie bii bio bir biz bob boc boe boi boo bor boz brb bre bri bro brr brz bze bzo bzr bzz c-- cbb cbc cbe cbi cbo cbr cbz ccb ccc cce cci cco ccr ccz ce- ceb cec cee cei ceo cer cez ci- cib cic cie cii cio cir co- cob coc coe coi coo cor coz crb crc cre cri cro crr crz cz- czc cze czo ebb ebc ebe ebi ebo ebr ec- ecb ecc ece eci eco ecr eeb eec eee eeo eer eib eic eie eii eio eir eo- eob eoc eoe eoi eoo eor erb erc ere eri ero err erz eze ezo ezr ezz ibb ibc ibe ibi ibo ibr ibz icb icc ice ici ico icr icz ie- iec iee iei ier iib iic iie iii iio iir io- iob ioc ioe ioi ioo ior ir- irb irc ire iri iro irr ize izi izo izz o-i ob- obb obc obe obi obo obr oc- ocb occ oci oco ocr ocz oeb oec oee oei oeo oer oib oic oie oii oio oir oiz oo- oob ooc ooi ooo oor or- orb orc ore ori oro orr orz oze ozo ozz rbb rbc rbe rbi rbo rbr rcb rcc rce rci rco rcr re- reb rec ree rei reo rer rez rib ric rie rii rio rir riz rob roc roe roi roo ror roz rrb rrc rri rrr rzb rze rzo zbb zbc zbr zce zco zeb zec zee zeo zer zez zib zie zio zir ziz zo- zob zoc zoe zoi zoo zor zro zzr zzz