There are 3 shapes on a 10x10 grid. Which shape is closest to the green 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: green square at (2, 8)
Distance from target shape to cyan trapezoid at (0, 5): 5
Distance from target shape to gray trapezoid at (2, 7): 1
Closest shape is the gray trapezoid at (2, 7) with distance 1</think>

<answer>(2, 7)</answer>