There are 4 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 (2, 0)
Distance from target shape to purple square at (7, 4): 9
Distance from target shape to red square at (6, 3): 7
Distance from target shape to blue trapezoid at (5, 5): 8
Closest shape is the red square at (6, 3) with distance 7</think>

<answer>(6, 3)</answer>