There are 3 shapes on a 10x10 grid. Which shape is closest to the yellow 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: yellow right_triangle at (8, 8)
Distance from target shape to green square at (7, 2): 7
Distance from target shape to orange square at (9, 8): 1
Closest shape is the orange square at (9, 8) with distance 1</think>

<answer>(9, 8)</answer>