Growing digits
Logic
Level
1
\[ \begin{array} { rrrrr } & & & & & A \\ & & & & A & A \\ & & & A & A & A \\ + & & A & A & A & A \\ \hline & \large\square & \large\square & \large\square & \large\square & \large\square \\ \end{array} \]
The above is an incomplete cryptogram, where \(A\) is a positive, single-digit integer. As shown, the final sum is a 5-digit number.
What is this final sum?
by
Pi Han Goh