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 (2, 0)
Distance from target shape to cyan square at (3, 6): 7
Distance from target shape to blue trapezoid at (2, 6): 6
Distance from target shape to orange rectangle at (1, 7): 8
Closest shape is the blue trapezoid at (2, 6) with distance 6</think>

<answer>(2, 6)</answer>