There are 2 shapes on a 7x7 grid. Which shape is closest to the green rectangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: green rectangle at (1, 0)
Distance from target shape to yellow square at (3, 6): 8
Closest shape is the yellow square at (3, 6) with distance 8</think>

<answer>(3, 6)</answer>