There are 2 shapes on a 10x10 grid. Which shape is closest to the purple 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: purple right_triangle at (3, 5)
Distance from target shape to pink square at (0, 8): 6
Closest shape is the pink square at (0, 8) with distance 6</think>

<answer>(0, 8)</answer>