There are 5 shapes on a 10x10 grid. Which shape is closest to the gray 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: gray rectangle at (8, 9)
Distance from target shape to yellow rectangle at (1, 3): 13
Distance from target shape to blue rectangle at (7, 0): 10
Distance from target shape to brown trapezoid at (0, 9): 8
Distance from target shape to cyan square at (9, 1): 9
Closest shape is the brown trapezoid at (0, 9) with distance 8</think>

<answer>(0, 9)</answer>