a-a a-b a-i aaa aab aad aae aai aam aan ab- aba abb abd abe abi abm abn ad- ada adb add ade adi adm adn aea aeb aed aee aei aem aen ai- aia aib aid aie aii aim ain ama amb amd ame ami amm amn an- ana anb and ane ani anm ann baa bab bad bae bai bam ban bba bbb bbd bbe bbi bbm bbn bda bdb bdd bde bdi bdm be- bea beb bed bee bei bem ben bi- bia bib bid bie bii bim bin bma bmb bmd bme bmi bmm bmn bna bnb bnd bne bni bnn daa dab dad dae dai dam dan dba dbb dbd dbe dbi dbm dbn dda ddb ddd dde ddi ddm ddn de- dea deb ded dee dei dem den di- dia dib did die dii dim din dma dmb dmd dme dmi dmm dmn dna dnb dnd dne dni dnm dnn eaa eab ead eae eai eam ean eba ebb ebd ebe ebi ebm ebn ed- eda edb edd ede edi edm edn eea eeb eed eee eem een eia eib eid eie eii eim ein em- ema emb emd eme emi emm emn en- ena enb end ene eni enm enn i-d ia- iaa iab iad iae iai iam ian iba ibb ibd ibe ibi ibm ibn ida idb idd ide idi idm idn ie- iea ied iee iei iem ien iia iib iid iie iii iim iin im- ima imb imd ime imi imm imn in- ina inb ind ine ini inm inn maa mab mad mae mai mam man mba mbb mbd mbe mbi mbm mda mdb mdd mde mdi mdm mdn mea meb med mee mei mem men mi- mia mib mid mie mii mim min mma mmb mmd mme mmi mmm mmn mna mnb mne mni mnm mnn n-i naa nab nad nae nai nam nan nba nbb nbd nbe nbi nbm nbn nda ndb ndd nde ndi ndm ndn ne- nea neb ned nee nei nem nen nia nib nid nie nii nim nin nma nmb nmd nme nmi nmm nmn nna nnb nne nni nnm nnn