There are 2 shapes on a 8x8 grid. Which shape is closest to the brown 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: brown right_triangle at (2, 7)
Distance from target shape to blue rectangle at (7, 5): 7
Closest shape is the blue rectangle at (7, 5) with distance 7</think>

<answer>(7, 5)</answer>