There are 2 shapes on a 6x6 grid. Which shape is closest to the purple 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: purple square at (0, 5)
Distance from target shape to blue square at (4, 2): 7
Closest shape is the blue square at (4, 2) with distance 7</think>

<answer>(4, 2)</answer>