a-a a-t aaa aam aao aas aat aax ama amm amo ams amt amx aoa aom aoo aos aot aox as- asa asm aso ass ast asx at- ata atm ato ats att atx ax- axa axm axo axs axt axx m-o maa mam mao mas mat max mma mmm mmo mms mmt mmx moa mom moo mos mot mox msa msm mso mss mst msx mta mtm mto mts mtt mtx mxa mxs oaa oam oao oas oat oax om- oma omm omo oms omt omx oo- ooa oom ooo oos oot oox os- osa osm oso oss ost osx ot- ota otm oto ots ott ox- oxa oxo oxt oxx saa sam sao sas sat sax sma smm smo sms smt smx soa som soo sos sot sox ss- ssa ssm sso sss sst ssx sta stm sto sts stt stx sxm sxs sxt t-x taa tam tao tas tat tax tma tmm tmo tms tmt tmx to- toa tom too tos tot tox tsa tsm tso tss tst tsx tta ttm tto tts ttt ttx txs txt xaa xam xas xat xma xmm xmo xms xmt xmx xoa xom xoo xos xot xox xsa xsm xss xst xtm xts xtx xxo xxx