There are 2 shapes on a 10x10 grid. Which shape is closest to the gray 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: gray rectangle at (5, 6)
Distance from target shape to blue trapezoid at (1, 5): 5
Closest shape is the blue trapezoid at (1, 5) with distance 5</think>

<answer>(1, 5)</answer>