There are 4 shapes on a 3x3 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 (1, 0)
Distance from target shape to blue rectangle at (2, 0): 1
Distance from target shape to gray right_triangle at (0, 2): 3
Distance from target shape to cyan right_triangle at (0, 0): 1
Closest shape is the blue rectangle at (2, 0) with distance 1</think>

<answer>(2, 0)</answer>