There are 2 shapes on a 9x9 grid. Which shape is closest to the blue square 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 square at (5, 4)
Distance from target shape to purple rectangle at (0, 3): 6
Closest shape is the purple rectangle at (0, 3) with distance 6</think>

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