There are 5 shapes on a 6x6 grid. Which shape is closest to the blue 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: blue square at (3, 0)
Distance from target shape to brown square at (5, 5): 7
Distance from target shape to purple square at (5, 1): 3
Distance from target shape to orange rectangle at (2, 0): 1
Distance from target shape to red right_triangle at (4, 5): 6
Closest shape is the orange rectangle at (2, 0) with distance 1</think>

<answer>(2, 0)</answer>