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

<answer>(2, 3)</answer>