There are 5 shapes on a 5x5 grid. Which shape is closest to the pink 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: pink square at (0, 3)
Distance from target shape to orange rectangle at (2, 1): 4
Distance from target shape to red rectangle at (0, 0): 3
Distance from target shape to yellow square at (4, 1): 6
Distance from target shape to cyan rectangle at (2, 3): 2
Closest shape is the cyan rectangle at (2, 3) with distance 2</think>

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