There are 2 shapes on a 5x5 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 (1, 1)
Distance from target shape to brown right_triangle at (0, 3): 3
Closest shape is the brown right_triangle at (0, 3) with distance 3</think>

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