29. In the arithmetic expression shown in the figure, $A, B, C, D, E, F$ represent different single-digit numbers. Find $\overline{A B C D E F}$.
```
  A B C D
+   C D
---------
  C 8 C E C
+ A B C D
---------
  F 8 F 6 C
```
Reference answer: 201973