There are 2 shapes on a 10x10 grid. Which shape is closest to the green 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: green rectangle at (0, 6)
Distance from target shape to yellow right_triangle at (8, 7): 9
Closest shape is the yellow right_triangle at (8, 7) with distance 9</think>

<answer>(8, 7)</answer>