There are 3 shapes on a 10x10 grid. Which shape is closest to the orange 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: orange rectangle at (3, 1)
Distance from target shape to green square at (6, 1): 3
Distance from target shape to yellow trapezoid at (0, 9): 11
Closest shape is the green square at (6, 1) with distance 3</think>

<answer>(6, 1)</answer>