There are 2 shapes on a 10x10 grid. Which shape is closest to the brown 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: brown rectangle at (4, 0)
Distance from target shape to green trapezoid at (6, 3): 5
Closest shape is the green trapezoid at (6, 3) with distance 5</think>

<answer>(6, 3)</answer>