There are 2 shapes on a 10x10 grid. Which shape is closest to the cyan rectangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: cyan rectangle at (8, 9)
Distance from target shape to green right_triangle at (9, 0): 10
Closest shape is the green right_triangle at (9, 0) with distance 10</think>

<answer>(9, 0)</answer>