There are 3 shapes on a 8x8 grid. Which shape is closest to the orange 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: orange square at (2, 3)
Distance from target shape to gray rectangle at (2, 5): 2
Distance from target shape to blue right_triangle at (7, 5): 7
Closest shape is the gray rectangle at (2, 5) with distance 2</think>

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