-ic b-p bbb bbc bbe bbi bbn bbp bcb bcc bce bci bcn bcp be- beb bec bee bei ben bep bi- bib bic bie bii bin bip bnb bnc bne bni bnn bnp bpb bpc bpe bpi bpn bpp c-- cbb cbc cbe cbi cbn cbp ccb ccc cce cci ccn ccp ce- ceb cec cee cei cen cep ci- cib cic cie cii cin cip cn- cnb cnc cne cni cnn cnp cpb cpc cpe cpi cpn cpp ebb ebc ebe ebi ebn ebp ec- ecb ecc ece eci ecn eeb eec eee een eep eib eic eie eii ein eip en- enb enc ene eni enn enp ep- epb epc epe epi epn epp ibb ibc ibe ibi ibn ibp icb icc ice ici icn icp ie- iec iee iei ien iep iib iic iie iii iin iip in- inb inc ine ini inn inp ipb ipc ipe ipi ipn ipp n-i nbb nbc nbe nbi nbn nbp ncb ncc nce nci ncn ncp ne- neb nec nee nei nen nep nib nic nie nii nin nip nnb nnc nne nni nnn nnp npb npc npe npi npn npp p-p pbb pbc pbe pbi pbn pbp pcb pcc pce pci pcn pcp peb pec pee pei pen pep pib pic pie pii pin pip pn- pnb pnc pne pni pnn pnp ppb ppc ppe ppi ppn ppp