There are 3 shapes on a 3x3 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, 0)
Distance from target shape to orange rectangle at (2, 0): 2
Distance from target shape to green right_triangle at (2, 1): 3
Closest shape is the orange rectangle at (2, 0) with distance 2</think>

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