There are 6 shapes on a 4x4 grid. Which shape is closest to the cyan 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: cyan rectangle at (0, 2)
Distance from target shape to pink rectangle at (2, 0): 4
Distance from target shape to red right_triangle at (3, 3): 4
Distance from target shape to green square at (0, 3): 1
Distance from target shape to purple rectangle at (1, 1): 2
Distance from target shape to yellow rectangle at (3, 2): 3
Closest shape is the green square at (0, 3) with distance 1</think>

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