There are 4 shapes on a 8x8 grid. Which shape is closest to the gray trapezoid 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 trapezoid at (6, 2)
Distance from target shape to brown right_triangle at (3, 2): 3
Distance from target shape to green square at (1, 6): 9
Distance from target shape to orange right_triangle at (2, 4): 6
Closest shape is the brown right_triangle at (3, 2) with distance 3</think>

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