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 (2, 8)
Distance from target shape to brown square at (1, 7): 2
Distance from target shape to green trapezoid at (9, 0): 15
Distance from target shape to blue square at (7, 3): 10
Distance from target shape to yellow right_triangle at (1, 5): 4
Distance from target shape to purple trapezoid at (9, 2): 13
Closest shape is the brown square at (1, 7) with distance 2</think>

<answer>(1, 7)</answer>