There are 4 shapes on a 9x9 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 (7, 4)
Distance from target shape to gray trapezoid at (6, 0): 5
Distance from target shape to cyan trapezoid at (7, 0): 4
Distance from target shape to blue square at (7, 1): 3
Closest shape is the blue square at (7, 1) with distance 3</think>

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