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

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