There are 2 shapes on a 8x8 grid. Which shape is closest to the gray 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: gray trapezoid at (1, 7)
Distance from target shape to blue square at (1, 1): 6
Closest shape is the blue square at (1, 1) with distance 6</think>

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