Wow! Six of Six!

\[\large\begin{array}{lllllll}&&&&\color{red}A&\color{green}B&\color{blue}C\\\times&&&&\color{red}A&\color{green}B&\color{brown}D\\\hline&\ \color{indigo}6&\ \color{indigo}6&\ \color{indigo}6&\ \color{indigo}6&\ \color{indigo}6&\ \color{indigo}6\end{array}\]

What is the value of \(\overline{\color{red}A\color{green}B\color{blue}C}+\overline{\color{red}A\color{green}B\color{brown}D}\ ?\)

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