a-a a-c aaa aac aad aae aaf aao aaw ac- aca acc acd ace acf aco acw ad- ada adc add ade adf ado adw aea aec aed aee aef aeo aew af- afa afc afd afe aff afo afw aoa aoc aod aoe aof aoo aow aw- awa awc awd awe awf awo aww c-- caa cac cad cae caf cao caw cca ccc ccd cce ccf cco ccw cda cdc cdd cde cdf cdo cdw ce- cea cec ced cee cef ceo cew cfa cfc cfd cfe cff cfo cfw co- coa coc cod coe cof coo cow cw- cwa cwc cwd cwe cwo daa dac dad dae daf dao daw dca dcc dcd dce dcf dco dcw dda ddc ddd dde ddf ddo ddw de- dea dec ded dee def deo dew dfa dfc dfd dfe dff dfo dfw doa doc dod doe dof doo dow dwa dwc dwe dwf dwo dww eaa eac ead eae eaf eao eaw ec- eca ecc ecd ece ecf eco ecw ed- eda edc edd ede edf edo edw eea eec eed eee eef eeo eew ef- efa efc efd efe eff efo efw eo- eoa eoc eod eoe eof eoo eow ewa ewc ewd ewe ewf ewo eww faa fac fad fae faf fao faw fca fcc fcd fce fcf fco fcw fda fdc fdd fde fdf fdo fea fec fed fee fef feo few ffa ffc ffd ffe fff ffo ffw foa foc foe fof foo fow fwa fwc fwd fwe fwf fwo oaa oac oad oae oaf oao oaw oc- oca occ ocd ocf oco ocw oda odc odd ode odf odo oea oec oed oee oef oeo of- ofa ofc ofd ofe off ofo ofw oo- ooa ooc ood oof ooo oow owa owc owd owe owf owo oww waa wac wad wae waf wao waw wca wcc wcd wce wcf wco wcw wda wdc wdf wea wec wed wee wef weo wew wfa wfc wfd wfe wff wfo wfw woa woc wod woe wof woo wow wwa wwc wwd wwe wwf wwo www