There are 3 shapes on a 10x10 grid. Which shape is closest to the pink 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: pink rectangle at (6, 8)
Distance from target shape to orange rectangle at (7, 2): 7
Distance from target shape to purple right_triangle at (4, 0): 10
Closest shape is the orange rectangle at (7, 2) with distance 7</think>

<answer>(7, 2)</answer>