There are 3 shapes on a 9x9 grid. Which shape is closest to the red 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: red square at (4, 2)
Distance from target shape to green square at (3, 8): 7
Distance from target shape to cyan square at (2, 3): 3
Closest shape is the cyan square at (2, 3) with distance 3</think>

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