There are 4 shapes on a 8x8 grid. Which shape is closest to the brown 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: brown square at (6, 3)
Distance from target shape to gray trapezoid at (1, 7): 9
Distance from target shape to orange rectangle at (6, 5): 2
Distance from target shape to green trapezoid at (0, 0): 9
Closest shape is the orange rectangle at (6, 5) with distance 2</think>

<answer>(6, 5)</answer>