There are 4 shapes on a 8x8 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 (6, 1)
Distance from target shape to blue right_triangle at (0, 3): 8
Distance from target shape to brown square at (4, 7): 8
Distance from target shape to orange rectangle at (6, 2): 1
Closest shape is the orange rectangle at (6, 2) with distance 1</think>

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