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

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