There are 2 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, 6)
Distance from target shape to red right_triangle at (2, 5): 5
Closest shape is the red right_triangle at (2, 5) with distance 5</think>

<answer>(2, 5)</answer>