There are 3 shapes on a 9x9 grid. Which shape is closest to the red square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: red square at (1, 4)
Distance from target shape to pink right_triangle at (0, 7): 4
Distance from target shape to orange right_triangle at (0, 8): 5
Closest shape is the pink right_triangle at (0, 7) with distance 4</think>

<answer>(0, 7)</answer>