mss n-i naa nab nac nad nae nai nal nam nan nap nas nba nbb nbc nbd nbe nbi nbl nbm nbn nbp nbs nca ncb ncc ncd nce nci ncl ncm ncn ncp ncs nda ndb ndc ndd nde ndi ndl ndm ndn ndp nds ne- nea neb nec ned nee nei nel nem nen nep nes nia nib nic nid nie nii nil nim nin nip nis nla nlb nlc nld nle nli nll nlm nln nlp nls nma nmb nmc nmd nme nmi nml nmm nmn nmp nms nna nnb nnc nne nni nnl nnm nnn nnp nns npa npb npc npd npe npi npl npm npn npp nps nsa nsb nsc nsd nse nsi nsl nsm nsn nsp nss p-p paa pab pac pad pae pai pal pam pan pap pas pba pbb pbc pbd pbe pbi pbl pbm pbn pbp pbs pca pcb pcc pcd pce pci pcl pcm pcn pcp pcs pda pdb pdc pdd pde pdi pdl pdm pdn pdp pds pea peb pec ped pee pei pel pem pen pep pes pia pib pic pid pie pii pil pim pin pip pis pla plb plc pld ple pli pll plm pln plp pls pma pmb pmc pmd pme pmi pml pmm pmn pmp pms pn- pna pnb pnc pnd pne pni pnl pnm pnn pnp pns ppa ppb ppc ppd ppe ppi ppl ppm ppn ppp pps ps- psa psb psc psd pse psi psl psm psn psp pss saa sab sac sad sae sai sal sam san sap sas sba sbb sbc sbd sbe sbi sbl sbm sbn sbp sbs sca scb scc scd sce sci scl scm scn scp scs sda sdb sdc sdd sde sdi sdl sdm sdn sdp sds se- sea seb sec sed see sei sel sem sen sep ses sia sib sic sid sie sii sil sim sin sip sis sla slb slc sld sle sli sll slm sln slp sls sma smb smc smd sme smi sml smm smn smp sms sna snb snc snd sne sni snl snm snn snp sns spa spb spc spd spe spi spl spm spn spp sps ss- ssa ssb ssc ssd sse ssi ssl ssm ssn ssp sss