There are 2 shapes on a 5x5 grid. Which shape is closest to the red 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: red square at (2, 2)
Distance from target shape to purple rectangle at (4, 1): 3
Closest shape is the purple rectangle at (4, 1) with distance 3</think>

<answer>(4, 1)</answer>