-ic b-p bbb bbc bbe bbi bbp bcb bcc bce bci bcp be- beb bec bee bei bep bi- bib bic bie bii bip bpb bpc bpe bpi bpp c-- cbb cbc cbe cbi cbp ccb ccc cce cci ccp ce- ceb cec cee cei cep ci- cib cic cie cii cip cpb cpc cpe cpi cpp ebb ebc ebe ebi ebp ec- ecb ecc ece eci eeb eec eee eep eib eic eie eii eip ep- epb epc epe epi epp ibb ibc ibe ibi ibp icb icc ice ici icp ie- iec iee iei iep iib iic iie iii iip ipb ipc ipe ipi ipp p-p pbb pbc pbe pbi pbp pcb pcc pce pci pcp peb pec pee pei pep pib pic pie pii pip ppb ppc ppe ppi ppp