There are 2 shapes on a 9x9 grid. Which shape is closest to the red trapezoid 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 trapezoid at (4, 2)
Distance from target shape to purple trapezoid at (4, 6): 4
Closest shape is the purple trapezoid at (4, 6) with distance 4</think>

<answer>(4, 6)</answer>