There are 2 shapes on a 8x8 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 (5, 7)
Distance from target shape to green rectangle at (4, 6): 2
Closest shape is the green rectangle at (4, 6) with distance 2</think>

<answer>(4, 6)</answer>