b-p bbb bbe bbg bbi bbn bbp bbs be- beb bee beg bei ben bep bes bgb bge bgg bgi bgn bgp bgs bi- bib bie big bii bin bip bis bnb bne bng bni bnn bnp bns bpb bpe bpg bpi bpn bpp bps bsb bse bsg bsi bsn bsp bss ebb ebe ebg ebi ebn ebp ebs eeb eee eeg een eep ees egb ege egg egi egn egp egs eib eie eig eii ein eip eis en- enb ene eng eni enn enp ens ep- epb epe epg epi epn epp eps es- esb ese esg esi esn esp ess g-p gbe gbg gbi gbn gbp gbs ge- geb gee geg gei gen gep ges ggb ggg ggi ggn ggp ggs gib gie gig gii gin gip gis gnb gne gni gnn gnp gns gpb gpe gpg gpi gpn gpp gps gsb gse gsg gsi gsn gsp gss ibb ibe ibg ibi ibn ibp ibs ie- iee ieg iei ien iep ies igb ige igg igi ign igp igs iib iie iii iin iip iis in- inb ine ing ini inn inp ins ipb ipe ipg ipi ipn ipp ips is- isb ise isg isi isn isp iss n-i nbb nbe nbg nbi nbn nbp nbs ne- neb nee neg nei nen nep nes ngb nge ngg ngi ngn ngp ngs nib nie nig nii nin nip nis nnb nne nng nni nnn nnp nns npb npe npg npi npn npp nps nsb nse nsg nsi nsn nsp nss p-p pbb pbe pbg pbi pbn pbp pbs peb pee peg pei pen pep pes pgb pge pgg pgi pgn pgp pgs pib pie pig pii pin pip pis pn- pnb pne png pni pnn pnp pns ppb ppe ppg ppi ppn ppp pps ps- psb pse psg psi psn psp pss sbb sbe sbg sbi sbn sbp sbs se- seb see seg sei sen sep ses sgb sge sgg sgi sgn sgp sgs sib sie sig sii sin sip sis snb sne sng sni snn snp sns spb spe spg spi spn spp sps ss- ssb sse ssg ssi ssn ssp sss