-ic -ji bbb bbc bbe bbi bbo bbs bbt bcb bcc bce bci bcj bco bcs bct be- beb bec bee bei beo bes bet bi- bib bic bie bii bij bio bis bit bjc bji bjj bjs bjt bob boc boe boi boj boo bos bot bsb bsc bse bsi bsj bso bss bst btb btc bte bti bto bts btt c-- c-j cbb cbc cbe cbi cbj cbo cbs cbt ccb ccc cce cci ccj cco ccs cct ce- ceb cec cee cei cej ceo ces cet ci- cib cic cie cii cij cio cis cit cjb cjc cjs co- cob coc coe coi coj coo cos cot csb csc cse csi csj cso css cst ctb ctc cte cti cto cts ctt ebb ebc ebe ebi ebj ebo ebs ebt ec- ecb ecc ece eci ecj eco ecs ect eeb eec eee eeo ees eet eib eic eie eii eij eio eis eit ejc eji ejo ejt eo- eob eoc eoe eoi eoo eos eot es- esb esc ese esi eso ess est etb etc ete eti etj eto ets ett ibb ibc ibe ibi ibj ibo ibs ibt icb icc ice ici icj ico ics ict ie- iec iee iei iej ies iet iib iic iie iii iij iio iis iit ijb ijc ije iji ijo ijs ijt io- iob ioc ioe ioi ioj ioo ios iot is- isb isc ise isi isj iso iss ist itb itc ite iti itj ito its itt j-i jbc jbi jbj jbo jbs jbt jcb jcc jce jci jco jcs jct jeb jec jee jei jej jeo jes jet jib jic jie jii jij jio jis jit jjb jjc jjj jjs job joc joe joi joj joo jos jot jsb jsc jse jsi jsj jso jss jst jtb jtc jte jti jts jtt o-i ob- obb obc obe obi obj obo obs obt oc- ocb occ oci ocj oco ocs oct oeb oec oee oei oeo oes oet oib oic oie oii oio ois oit ojb ojc oje oji ojo ojs oo- oob ooc ooi ooo oos oot os- osb osc ose osi osj oso oss ost ot- otb otc ote oti oto ots ott sbb sbc sbe sbi sbj sbo sbs sbt scb scc sce sci scj sco scs sct se- seb sec see sei sej seo ses set sib sic sie sii sij sio sis sit sjb sjc sje sji sjj sjs sjt sob soc soe soi soj soo sos sot ss- ssb ssc sse ssi ssj sso sss sst stb stc ste sti stj sto sts stt tbb tbc tbe tbi tbj tbo tbs tbt tcb tcc tce tci tcj tco tcs tct te- teb tec tee tei tej teo tes tet tib tic tie tii tio tis tit tjc tje tji tjo tjs to- tob toc toe toi toj too tos tot tsb tsc tse tsi tsj tso tss tst ttb ttc tte tti tto tts ttt