There are 5 shapes on a 10x10 grid. Which shape is closest to the brown 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: brown trapezoid at (1, 9)
Distance from target shape to gray trapezoid at (5, 4): 9
Distance from target shape to cyan trapezoid at (4, 6): 6
Distance from target shape to orange rectangle at (6, 0): 14
Distance from target shape to green rectangle at (3, 8): 3
Closest shape is the green rectangle at (3, 8) with distance 3</think>

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