There are 3 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 (2, 6)
Distance from target shape to gray rectangle at (5, 6): 3
Distance from target shape to green right_triangle at (8, 1): 11
Closest shape is the gray rectangle at (5, 6) with distance 3</think>

<answer>(5, 6)</answer>