There are 6 shapes on a 8x8 grid. Which shape is closest to the pink square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: pink square at (7, 2)
Distance from target shape to purple trapezoid at (6, 6): 5
Distance from target shape to gray right_triangle at (5, 6): 6
Distance from target shape to brown trapezoid at (3, 4): 6
Distance from target shape to yellow right_triangle at (3, 1): 5
Distance from target shape to red right_triangle at (1, 0): 8
Closest shape is the purple trapezoid at (6, 6) with distance 5</think>

<answer>(6, 6)</answer>