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 (4, 2)
Distance from target shape to red square at (7, 4): 5
Closest shape is the red square at (7, 4) with distance 5</think>

<answer>(7, 4)</answer>