There are 2 shapes on a 8x8 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 (3, 3)
Distance from target shape to yellow trapezoid at (7, 1): 6
Closest shape is the yellow trapezoid at (7, 1) with distance 6</think>

<answer>(7, 1)</answer>