There are 4 shapes on a 9x9 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, 5)
Distance from target shape to gray square at (7, 8): 6
Distance from target shape to brown rectangle at (3, 4): 2
Distance from target shape to cyan square at (7, 1): 7
Closest shape is the brown rectangle at (3, 4) with distance 2</think>

<answer>(3, 4)</answer>