-ic b-p bbb bbc bbe bbi bbl bbp bcb bcc bce bci bcl bcp be- beb bec bee bei bel bep bi- bib bic bie bii bil bip blb blc ble bli bll blp bpb bpc bpe bpi bpl bpp c-- cbb cbc cbe cbi cbl cbp ccb ccc cce cci ccl ccp ce- ceb cec cee cei cel cep ci- cib cic cie cii cil cip cl- clb clc cle cli cll clp cpb cpc cpe cpi cpl cpp ebb ebc ebe ebi ebl ebp ec- ecb ecc ece eci ecl eeb eec eee eel eep eib eic eie eii eil eip elb elc ele eli ell elp ep- epb epc epe epi epl epp ibb ibc ibe ibi ibl ibp icb icc ice ici icl icp ie- iec iee iei iel iep iib iic iie iii iil iip il- ilb ilc ile ili ill ilp ipb ipc ipe ipi ipl ipp l-p lbb lbc lbe lbi lbl lbp lcb lcc lce lci lcl lcp leb lec lee lei lel lep lib lic lie lii lil lip llb llc lle lli lll llp lpb lpc lpe lpi lpl lpp p-p pbb pbc pbe pbi pbl pbp pcb pcc pce pci pcl pcp peb pec pee pei pel pep pib pic pie pii pil pip plb plc ple pli pll plp ppb ppc ppe ppi ppl ppp