69. Given that $A, B, C, D, E, F, G, H, I$ are 9 different non-zero digits, satisfying: $A$ divided by $B$ leaves a remainder of $C$, $D$ divided by $E$ leaves a remainder of $F$, and $G$ divided by $H$ leaves a remainder of $I$, then the result of $\overline{A B C}+\overline{D E F}+\overline{G H I}$ is . $\qquad$
Answer: 2547