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

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