There are 3 shapes on a 9x9 grid. Which shape is closest to the blue 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: blue square at (3, 5)
Distance from target shape to red square at (0, 8): 6
Distance from target shape to yellow square at (3, 8): 3
Closest shape is the yellow square at (3, 8) with distance 3</think>

<answer>(3, 8)</answer>