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

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