There are 5 shapes on a 9x9 grid. Which shape is closest to the orange 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: orange right_triangle at (3, 4)
Distance from target shape to blue trapezoid at (7, 1): 7
Distance from target shape to pink right_triangle at (3, 0): 4
Distance from target shape to red rectangle at (0, 5): 4
Distance from target shape to gray right_triangle at (4, 0): 5
Closest shape is the pink right_triangle at (3, 0) with distance 4</think>

<answer>(3, 0)</answer>