-ic b-p bbb bbc bbe bbh bbi bbn bbp bcb bcc bce bch bci bcn bcp be- beb bec bee beh bei ben bep bhb bhc bhe bhh bhi bhp bi- bib bic bie bih bii bin bip bnb bnc bne bni bnn bnp bpb bpc bpe bph bpi bpn bpp c-- cbb cbc cbe cbh cbi cbn cbp ccb ccc cce cch cci ccn ccp ce- ceb cec cee ceh cei cen cep ch- chb chc che chh chi chn chp ci- cib cic cie cih cii cin cip cn- cnb cnc cne cnh cni cnn cnp cpb cpc cpe cph cpi cpn cpp ebb ebc ebe ebh ebi ebn ebp ec- ecb ecc ece ech eci ecn eeb eec eee een eep ehb ehc ehe ehh ehi ehn ehp eib eic eie eii ein eip en- enb enc ene enh eni enn enp ep- epb epc epe eph epi epn epp h-i hbb hbc hbe hbh hbi hbn hbp hcb hcc hce hch hci hcn hcp he- heb hec hee heh hei hen hep hhb hhc hhe hhh hhi hhn hhp hib hic hie hih hii hin hip hnb hnc hne hnh hnn hpb hpc hpe hph hpi hpn hpp ibb ibc ibe ibh ibi ibn ibp icb icc ice ich ici icn icp ie- iec iee iei ien iep ihb ihc ihe ihh ihi ihn ihp iib iic iie iih iii iin iip in- inb inc ine inh ini inn inp ipb ipc ipe ipi ipn ipp n-i nbb nbc nbe nbi nbn nbp ncb ncc nce nch nci ncn ncp ne- neb nec nee neh nei nen nep nhb nhc nhe nhh nhi nhn nhp nib nic nie nih nii nin nip nnb nnc nne nnh nni nnn nnp npb npc npe nph npi npn npp p-p pbb pbc pbe pbi pbn pbp pcb pcc pce pch pci pcn pcp peb pec pee peh pei pen pep phb phc phe phi phn php pib pic pie pih pii pin pip pn- pnb pnc pne pnh pni pnn pnp ppb ppc ppe pph ppi ppn ppp