There are 5 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, 4)
Distance from target shape to blue square at (8, 2): 7
Distance from target shape to purple trapezoid at (1, 0): 6
Distance from target shape to gray trapezoid at (3, 2): 2
Distance from target shape to orange trapezoid at (1, 6): 4
Closest shape is the gray trapezoid at (3, 2) with distance 2</think>

<answer>(3, 2)</answer>