There are 2 shapes on a 8x8 grid. Which shape is closest to the yellow 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: yellow trapezoid at (7, 6)
Distance from target shape to pink square at (2, 1): 10
Closest shape is the pink square at (2, 1) with distance 10</think>

<answer>(2, 1)</answer>