There are 4 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 (0, 8)
Distance from target shape to pink trapezoid at (5, 3): 10
Distance from target shape to blue rectangle at (9, 6): 11
Distance from target shape to yellow rectangle at (2, 6): 4
Closest shape is the yellow rectangle at (2, 6) with distance 4</think>

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