There are 6 shapes on a 9x9 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 (6, 3)
Distance from target shape to red right_triangle at (5, 2): 2
Distance from target shape to cyan rectangle at (2, 5): 6
Distance from target shape to brown trapezoid at (8, 8): 7
Distance from target shape to purple trapezoid at (0, 0): 9
Distance from target shape to blue trapezoid at (2, 4): 5
Closest shape is the red right_triangle at (5, 2) with distance 2</think>

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