a-a a-i aaa aaf aai aam aan aas af- afa aff afi afm afn afs ai- aia aif aii aim ain ais ama amf ami amm amn ams an- ana anf ani anm ann ans as- asa asf asi asm asn ass faa faf fai fam fan fas ffa fff ffi ffm ffn ffs fia fif fii fim fin fis fma fmf fmi fmm fmn fms fna fnf fni fnm fnn fns fsa fsf fsi fsm fsn fss i-f ia- iaa iaf iai iam ian ias ifa iff ifi ifm ifn ifs iia iif iii iim iin iis im- ima imf imi imm imn ims in- ina inf ini inm inn ins is- isa isf isi ism isn iss m-f maa maf mai mam man mas mfa mff mfi mfm mfn mfs mi- mia mif mii mim min mis mma mmf mmi mmm mmn mms mna mnf mni mnm mnn mns msa msf msi msm msn mss n-i naa naf nai nam nan nas nfa nff nfi nfn nfs nia nif nii nim nin nis nma nmi nmm nmn nms nna nnf nni nnm nnn nns nsa nsf nsi nsm nsn nss saa saf sai sam san sas sfa sff sfi sfm sfn sfs sia sif sii sim sin sis sma smf smi smm smn sms sna snf sni snm snn sns ss- ssa ssf ssi ssm ssn sss