There are 3 shapes on a 9x9 grid. Which shape is closest to the blue 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: blue rectangle at (3, 8)
Distance from target shape to pink rectangle at (5, 3): 7
Distance from target shape to brown square at (0, 7): 4
Closest shape is the brown square at (0, 7) with distance 4</think>

<answer>(0, 7)</answer>