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

<answer>(2, 3)</answer>