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

<answer>(0, 3)</answer>