There are 2 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, 2)
Distance from target shape to gray trapezoid at (6, 3): 4
Closest shape is the gray trapezoid at (6, 3) with distance 4</think>

<answer>(6, 3)</answer>