There are 4 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 (3, 0)
Distance from target shape to brown trapezoid at (0, 4): 7
Distance from target shape to pink square at (9, 8): 14
Distance from target shape to orange trapezoid at (1, 9): 11
Closest shape is the brown trapezoid at (0, 4) with distance 7</think>

<answer>(0, 4)</answer>