There are 3 shapes on a 6x6 grid. Which shape is closest to the brown 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: brown square at (2, 2)
Distance from target shape to green rectangle at (2, 0): 2
Distance from target shape to orange square at (1, 3): 2
Closest shape is the green rectangle at (2, 0) with distance 2</think>

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