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 orange trapezoid at (1, 5): 7
Distance from target shape to green rectangle at (1, 0): 2
Distance from target shape to brown square at (2, 4): 5
Distance from target shape to gray trapezoid at (3, 3): 3
Closest shape is the green rectangle at (1, 0) with distance 2</think>

<answer>(1, 0)</answer>