There are 3 shapes on a 7x7 grid. Which shape is closest to the pink 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: pink trapezoid at (1, 5)
Distance from target shape to yellow rectangle at (0, 5): 1
Distance from target shape to gray trapezoid at (3, 4): 3
Closest shape is the yellow rectangle at (0, 5) with distance 1</think>

<answer>(0, 5)</answer>