There are 4 shapes on a 10x10 grid. Which shape is closest to the cyan rectangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: cyan rectangle at (3, 6)
Distance from target shape to purple trapezoid at (9, 8): 8
Distance from target shape to gray square at (8, 6): 5
Distance from target shape to orange square at (1, 1): 7
Closest shape is the gray square at (8, 6) with distance 5</think>

<answer>(8, 6)</answer>