There are 5 shapes on a 8x8 grid. Which shape is closest to the orange 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: orange rectangle at (4, 7)
Distance from target shape to brown rectangle at (6, 6): 3
Distance from target shape to green square at (7, 7): 3
Distance from target shape to cyan rectangle at (3, 7): 1
Distance from target shape to pink rectangle at (2, 4): 5
Closest shape is the cyan rectangle at (3, 7) with distance 1</think>

<answer>(3, 7)</answer>