There are 6 shapes on a 8x8 grid. Which shape is closest to the orange 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: orange trapezoid at (7, 1)
Distance from target shape to yellow square at (0, 4): 10
Distance from target shape to red trapezoid at (3, 0): 5
Distance from target shape to purple rectangle at (7, 0): 1
Distance from target shape to green square at (4, 6): 8
Distance from target shape to gray rectangle at (1, 6): 11
Closest shape is the purple rectangle at (7, 0) with distance 1</think>

<answer>(7, 0)</answer>