a-a a-i aaa aaf aai aam aan aar aax af- afa aff afi afm afn afr afx ai- aia aif aii aim ain air aix ama amf ami amm amn amr amx an- ana anf ani anm ann anr anx ar- ara arf ari arm arn arr arx ax- axa axi axm axn axr axx faa faf fai fam fan far fax ffa fff ffi ffm ffn ffr ffx fia fif fii fim fin fir fix fma fmf fmi fmm fmn fmr fmx fna fnf fni fnm fnn fnr fnx fra frf fri frm frn frr fxi fxm fxr fxx i-f ia- iaa iaf iai iam ian iar ifa iff ifi ifm ifn ifr ifx iia iif iii iim iin iir iix im- ima imf imi imm imn imx in- ina inf ini inm inn inr inx ir- ira irf iri irm irn irr irx ixi ixn m-f m-r maa maf mai mam man mar max mfa mff mfi mfm mfn mfr mi- mia mif mii mim min mir mix mma mmf mmi mmm mmn mmr mmx mna mnf mni mnm mnn mnr mra mrf mri mrm mrn mrr mrx mxa mxi mxn mxr n-i naa naf nai nam nan nar nax nfa nff nfi nfn nfr nia nif nii nim nin nir nix nma nmi nmm nmn nmr nna nnf nni nnm nnn nra nrf nri nrm nrn nrr nrx ra- raa raf rai ram ran rar rax rfa rff rfi rfm rfn rfr ria rif rii rim rin rir rix rma rmf rmi rmm rmn rmr rmx rna rni rnm rnn rnr rra rrf rri rrm rrn rrr rxr xaa xaf xam xan xar xfa xfm xfn xfx xia xii xin xix xma xmf xmi xmm xmr xmx xna xrf xrx xxi xxx