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

<answer>(3, 0)</answer>