There are 3 shapes on a 5x5 grid. Which shape is closest to the pink 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: pink rectangle at (4, 3)
Distance from target shape to orange rectangle at (1, 1): 5
Distance from target shape to cyan rectangle at (4, 0): 3
Closest shape is the cyan rectangle at (4, 0) with distance 3</think>

<answer>(4, 0)</answer>