There are 2 shapes on a 10x10 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 (6, 8)
Distance from target shape to pink right_triangle at (3, 3): 8
Closest shape is the pink right_triangle at (3, 3) with distance 8</think>

<answer>(3, 3)</answer>