There are 5 shapes on a 10x10 grid. Which shape is closest to the yellow 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: yellow rectangle at (3, 2)
Distance from target shape to cyan rectangle at (3, 8): 6
Distance from target shape to red rectangle at (7, 3): 5
Distance from target shape to gray trapezoid at (7, 1): 5
Distance from target shape to green right_triangle at (3, 0): 2
Closest shape is the green right_triangle at (3, 0) with distance 2</think>

<answer>(3, 0)</answer>