There are 2 shapes on a 4x4 grid. Which shape is closest to the gray 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: gray rectangle at (0, 2)
Distance from target shape to red rectangle at (2, 1): 3
Closest shape is the red rectangle at (2, 1) with distance 3</think>

<answer>(2, 1)</answer>