There are 3 shapes on a 4x4 grid. Which shape is closest to the blue 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: blue rectangle at (3, 0)
Distance from target shape to brown trapezoid at (1, 2): 4
Distance from target shape to orange trapezoid at (1, 0): 2
Closest shape is the orange trapezoid at (1, 0) with distance 2</think>

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