-ic b-p bbb bbc bbe bbi bbl bbp bbs bbt bcb bcc bce bci bcl bcp bcs bct be- beb bec bee bei bel bep bes bet bi- bib bic bie bii bil bip bis bit blb blc ble bli bll blp bls blt bpb bpc bpe bpi bpl bpp bps bpt bsb bsc bse bsi bsl bsp bss bst btb btc bte bti btl btp bts btt c-- cbb cbc cbe cbi cbl cbp cbs cbt ccb ccc cce cci ccl ccp ccs cct ce- ceb cec cee cei cel cep ces cet ci- cib cic cie cii cil cip cis cit cl- clb clc cle cli cll clp cls clt cpb cpc cpe cpi cpl cpp cps cpt csb csc cse csi csl csp css cst ctb ctc cte cti ctl ctp cts ctt ebb ebc ebe ebi ebl ebp ebs ebt ec- ecb ecc ece eci ecl ecs ect eeb eec eee eel eep ees eet eib eic eie eii eil eip eis eit elb elc ele eli ell elp els elt ep- epb epc epe epi epl epp eps ept es- esb esc ese esi esl esp ess est etb etc ete eti etl etp ets ett ibb ibc ibe ibi ibl ibp ibs ibt icb icc ice ici icl icp ics ict ie- iec iee iei iel iep ies iet iib iic iie iii iil iip iis iit il- ilb ilc ile ili ill ilp ils ilt ipb ipc ipe ipi ipl ipp ips ipt is- isb isc ise isi isl isp iss ist itb itc ite iti itl itp its itt l-p lbb lbc lbe lbi lbl lbp lbs lbt lcb lcc lce lci lcl lcp lcs lct leb lec lee lei lel lep les let lib lic lie lii lil lip lis lit llb llc lle lli lll llp lls llt lpb lpc lpe lpi lpl lpp lps lpt lsb lsc lse lsi lsl lsp lss lst ltb ltc lte lti ltl ltp lts ltt p-p pbb pbc pbe pbi pbl pbp pbs pbt pcb pcc pce pci pcl pcp pcs pct peb pec pee pei pel pep pes pet pib pic pie pii pil pip pis pit plb plc ple pli pll plp pls plt ppb ppc ppe ppi ppl ppp pps ppt ps- psb psc pse psi psl psp pss pst pt- ptb ptc pte pti ptl ptp pts ptt sbb sbc sbe sbi sbl sbp sbs sbt scb scc sce sci scl scp scs sct se- seb sec see sei sel sep ses set sib sic sie sii sil sip sis sit slb slc sle sli sll slp sls slt spb spc spe spi spl spp sps spt ss- ssb ssc sse ssi ssl ssp sss sst stb stc ste sti stl stp sts stt tbb tbc tbe tbi tbl tbp tbs tbt tcb tcc tce tci tcl tcp tcs tct te- teb tec tee tei tel tep tes tet tib tic tie tii til tip tis tit tlc tle tli tll tlp tls tlt tpb tpc tpe tpi tpl tpp tps tpt tsb tsc tse tsi tsl tsp tss tst ttb ttc tte tti ttl ttp tts ttt