There are 2 shapes on a 8x8 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 (7, 4)
Distance from target shape to green trapezoid at (6, 7): 4
Closest shape is the green trapezoid at (6, 7) with distance 4</think>

<answer>(6, 7)</answer>