There are 3 shapes on a 10x10 grid. Which shape is closest to the purple 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: purple trapezoid at (0, 9)
Distance from target shape to yellow trapezoid at (8, 1): 16
Distance from target shape to brown trapezoid at (0, 3): 6
Closest shape is the brown trapezoid at (0, 3) with distance 6</think>

<answer>(0, 3)</answer>