There are 2 shapes on a 10x10 grid. Which shape is closest to the blue rectangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: blue rectangle at (4, 4)
Distance from target shape to red trapezoid at (6, 6): 4
Closest shape is the red trapezoid at (6, 6) with distance 4</think>

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