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

<answer>(3, 8)</answer>