a-a a-c aaa aac aad aae aaw ac- aca acc acd ace acw ad- ada adc add ade adw aea aec aed aee aew aw- awa awc awd awe aww c-- caa cac cad cae caw cca ccc ccd cce ccw cda cdc cdd cde cdw ce- cea cec ced cee cew cw- cwa cwc cwd cwe daa dac dad dae daw dca dcc dcd dce dcw dda ddc ddd dde ddw de- dea dec ded dee dew dwa dwc dwe dww eaa eac ead eae eaw ec- eca ecc ecd ece ecw ed- eda edc edd ede edw eea eec eed eee eew ewa ewc ewd ewe eww waa wac wad wae waw wca wcc wcd wce wcw wda wdc wea wec wed wee wew wwa wwc wwd wwe www