There are 2 shapes on a 6x6 grid. Which shape is closest to the brown rectangle 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 rectangle at (3, 0)
Distance from target shape to green rectangle at (0, 4): 7
Closest shape is the green rectangle at (0, 4) with distance 7</think>

<answer>(0, 4)</answer>