There are 2 shapes on a 6x6 grid. Which shape is closest to the green 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: green square at (2, 2)
Distance from target shape to purple rectangle at (5, 0): 5
Closest shape is the purple rectangle at (5, 0) with distance 5</think>

<answer>(5, 0)</answer>