There are 2 shapes on a 9x9 grid. Which shape is closest to the purple rectangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: purple rectangle at (0, 6)
Distance from target shape to orange right_triangle at (8, 0): 14
Closest shape is the orange right_triangle at (8, 0) with distance 14</think>

<answer>(8, 0)</answer>