There are 2 shapes on a 8x8 grid. Which shape is closest to the purple 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: purple trapezoid at (3, 5)
Distance from target shape to brown right_triangle at (2, 4): 2
Closest shape is the brown right_triangle at (2, 4) with distance 2</think>

<answer>(2, 4)</answer>