There are 2 shapes on a 9x9 grid. Which shape is closest to the blue 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: blue trapezoid at (7, 5)
Distance from target shape to brown trapezoid at (1, 8): 9
Closest shape is the brown trapezoid at (1, 8) with distance 9</think>

<answer>(1, 8)</answer>