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

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