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

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