There are 5 shapes on a 4x4 grid. Which shape is closest to the brown 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: brown rectangle at (3, 0)
Distance from target shape to orange square at (1, 0): 2
Distance from target shape to green rectangle at (3, 2): 2
Distance from target shape to blue trapezoid at (0, 2): 5
Distance from target shape to pink trapezoid at (0, 0): 3
Closest shape is the orange square at (1, 0) with distance 2</think>

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