There are 3 shapes on a 10x10 grid. Which shape is closest to the orange square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: orange square at (7, 9)
Distance from target shape to gray rectangle at (1, 4): 11
Distance from target shape to blue right_triangle at (2, 8): 6
Closest shape is the blue right_triangle at (2, 8) with distance 6</think>

<answer>(2, 8)</answer>