There are 2 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 (2, 9)
Distance from target shape to green square at (6, 1): 12
Closest shape is the green square at (6, 1) with distance 12</think>

<answer>(6, 1)</answer>