There are 2 shapes on a 8x8 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, 3)
Distance from target shape to green rectangle at (6, 6): 7
Closest shape is the green rectangle at (6, 6) with distance 7</think>

<answer>(6, 6)</answer>