There are 3 shapes on a 5x5 grid. Which shape is closest to the brown 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: brown square at (2, 4)
Distance from target shape to red rectangle at (1, 3): 2
Distance from target shape to gray right_triangle at (0, 1): 5
Closest shape is the red rectangle at (1, 3) with distance 2</think>

<answer>(1, 3)</answer>