There are 2 shapes on a 9x9 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 (3, 6)
Distance from target shape to cyan square at (0, 8): 5
Closest shape is the cyan square at (0, 8) with distance 5</think>

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