There are 4 shapes on a 5x5 grid. Which shape is closest to the orange 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: orange square at (4, 2)
Distance from target shape to purple right_triangle at (3, 4): 3
Distance from target shape to cyan right_triangle at (1, 2): 3
Distance from target shape to brown square at (3, 2): 1
Closest shape is the brown square at (3, 2) with distance 1</think>

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