There are 2 shapes on a 9x9 grid. Which shape is closest to the brown right_triangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: brown right_triangle at (2, 2)
Distance from target shape to blue rectangle at (8, 4): 8
Closest shape is the blue rectangle at (8, 4) with distance 8</think>

<answer>(8, 4)</answer>