There are 3 shapes on a 10x10 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 (9, 3)
Distance from target shape to pink trapezoid at (8, 9): 7
Distance from target shape to orange right_triangle at (3, 1): 8
Closest shape is the pink trapezoid at (8, 9) with distance 7</think>

<answer>(8, 9)</answer>