There are 4 shapes on a 6x6 grid. Which shape is closest to the gray 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: gray square at (5, 0)
Distance from target shape to red square at (2, 5): 8
Distance from target shape to brown rectangle at (3, 2): 4
Distance from target shape to green square at (5, 5): 5
Closest shape is the brown rectangle at (3, 2) with distance 4</think>

<answer>(3, 2)</answer>