There are 6 shapes on a 10x10 grid. Which shape is closest to the cyan 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: cyan square at (4, 9)
Distance from target shape to orange square at (2, 7): 4
Distance from target shape to blue square at (7, 6): 6
Distance from target shape to pink rectangle at (4, 1): 8
Distance from target shape to green trapezoid at (6, 8): 3
Distance from target shape to purple rectangle at (4, 6): 3
Closest shape is the green trapezoid at (6, 8) with distance 3</think>

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