There are 6 shapes on a 10x10 grid. Which shape is closest to the gray 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: gray square at (7, 2)
Distance from target shape to orange square at (3, 4): 6
Distance from target shape to purple square at (4, 3): 4
Distance from target shape to red trapezoid at (0, 1): 8
Distance from target shape to blue square at (9, 0): 4
Distance from target shape to pink rectangle at (9, 8): 8
Closest shape is the purple square at (4, 3) with distance 4</think>

<answer>(4, 3)</answer>