a-a a-b a-i aaa aab aai aak aam aan aas ab- aba abb abi abk abm abn abs ai- aia aib aii aik aim ain ais aka akb aki akk akm akn aks ama amb ami amk amm amn ams an- ana anb ani ank anm ann ans as- asa asb asi ask asm asn ass baa bab bai bak bam ban bas bba bbb bbi bbk bbm bbn bbs bi- bia bib bii bik bim bin bis bka bkb bkk bkm bkn bks bma bmb bmi bmk bmm bmn bms bna bnb bni bnk bnn bns bsa bsb bsi bsk bsm bsn bss ia- iaa iab iai iam ian ias iba ibb ibi ibk ibm ibn ibs iia iib iii iim iin iis ika ikb iki ikk iks im- ima imb imi imm imn ims in- ina inb ini ink inm inn ins is- isa isb isi isk ism isn iss ka- kaa kab kai kak kam kan kas kba kbb kbi kbk kbm kbn kbs kia kib kii kik kim kin kis kkb kki kkk kkm kkn kks kma kmb kmi kmk kmm kms kn- kna kni knk knm knn ksa ksb ksi ksk ksm ksn kss maa mab mai mak mam man mas mba mbb mbi mbk mbm mbs mi- mia mib mii mik mim min mis mka mkb mkk mkm mkn mks mma mmb mmi mmk mmm mmn mms mna mnb mni mnk mnm mnn mns msa msb msi msk msm msn mss n-i naa nab nai nak nam nan nas nba nbb nbi nbk nbm nbn nbs nia nib nii nik nim nin nis nka nki nkk nkm nkn nks nma nmb nmi nmk nmm nmn nms nna nnb nni nnk nnm nnn nns nsa nsb nsi nsk nsm nsn nss saa sab sai sak sam san sas sba sbb sbi sbk sbm sbn sbs sia sib sii sik sim sin sis sk- ska skb ski skk skm sks sma smb smi smk smm smn sms sna snb sni snk snm snn sns ss- ssa ssb ssi ssk ssm ssn sss