What is the position of the number 8? Enter your answer in the form `\boxed{rXcY}`.

7 9 . 2 . . 1 3 .
2 1 5 . 9 6 . 7 .
. . . 1 . . 5 2 9
8 . 3 . . . 2 9 1
5 . . . 1 . . . .
1 7 9 . 2 3 . 4 5
6 3 . . 7 9 . 5 2
. . . . . . . 6 .
. . . 6 3 2 . . .