There are 6 shapes on a 9x9 grid. Which shape is closest to the cyan 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: cyan right_triangle at (0, 1)
Distance from target shape to red trapezoid at (4, 0): 5
Distance from target shape to gray square at (6, 8): 13
Distance from target shape to blue trapezoid at (7, 0): 8
Distance from target shape to pink square at (6, 4): 9
Distance from target shape to orange trapezoid at (6, 3): 8
Closest shape is the red trapezoid at (4, 0) with distance 5</think>

<answer>(4, 0)</answer>