There are 6 shapes on a 10x10 grid. Which shape is closest to the pink square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: pink square at (9, 9)
Distance from target shape to yellow trapezoid at (1, 8): 9
Distance from target shape to brown square at (3, 8): 7
Distance from target shape to gray square at (2, 9): 7
Distance from target shape to orange rectangle at (3, 5): 10
Distance from target shape to cyan trapezoid at (0, 6): 12
Closest shape is the brown square at (3, 8) with distance 7</think>

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