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 (3, 3)
Distance from target shape to brown trapezoid at (2, 0): 4
Distance from target shape to red right_triangle at (1, 1): 4
Closest shape is the brown trapezoid at (2, 0) with distance 4</think>

<answer>(2, 0)</answer>