a-a a-c aaa aac aad aao aas aau aax ac- aca acc acd aco acs acu acx ad- ada adc add ado ads adu adx aoa aoc aod aoo aos aou aox as- asa asc asd aso ass asu asx au- aua auc aud auo aus aux ax- axa axo axs axx c-- caa cac cad cao cas cau cax cca ccc ccd cco ccs ccu ccx cda cdc cdd cdo cds cdu cdx co- coa coc cod coo cos cou cox csa csc csd cso css csu csx cua cuc cud cuo cus cuu cxc cxo cxs cxx daa dac dad dao das dau dax dca dcc dcd dco dcs dcu dcx dda ddc ddd ddo dds ddu ddx doa doc dod doo dos dou dox dsa dsc dsd dso dss dsu dsx dua duc dud duo dus dux dxc dxd dxo dxs dxx oaa oac oad oao oas oau oax oc- oca occ ocd oco ocs ocu ocx oda odc odd odo ods odu oo- ooa ooc ood ooo oos oox os- osa osc osd oso oss osu osx ou- oua ouc oud ouo ous ox- oxa oxc oxo oxx saa sac sad sao sas sau sax sca scc scd sco scs scu scx sda sdc sdd sdo sds sdu soa soc sod soo sos sou sox ss- ssa ssc ssd sso sss ssu ssx sua suc sud suo sus suu sux sxc sxs sxu ua- uaa uac uad uao uas uau uca ucc ucd uco ucs ucu uda udc udd udo uds udu udx uoa uoc uod uoo uos uox usa usc usd uso uss usu usx uua uuc uus uuu uxc uxo uxu xaa xac xad xas xau xcd xcx xda xdc xds xoa xoc xod xoo xos xox xsa xsc xss xus xxo xxx