a-a a-c aaa aac aaf aah aaw aax ac- aca acc acf ach acw acx af- afa afc aff afh afw afx aha ahc ahf ahh ahw ahx aw- awa awc awf awh aww ax- axa axh axx c-- caa cac caf cah caw cax cca ccc ccf cch ccw ccx cfa cfc cff cfh cfw cfx ch- cha chc chf chh chw chx cw- cwa cwc cwh cxc cxf cxh cxx faa fac faf fah faw fax fca fcc fcf fcw fcx ffa ffc fff ffh ffw ffx fha fhc fhf fhh fwa fwc fwf fwx fxx haa hac haf hah haw hax hca hcc hcf hch hcw hfa hfc hff hfh hfw hha hhc hhf hhh hhw hw- hwa hwf hww hxc waa wac waf wah waw wax wca wcc wcf wch wcw wcx wfa wfc wff wfh wfw wh- wha whc whf whh whw wwa wwc wwf www wxc wxw xaa xac xaf xcf xch xcx xfa xfh xfx xwa xxx