There are 2 shapes on a 6x6 grid. Which shape is closest to the green 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: green rectangle at (1, 5)
Distance from target shape to cyan rectangle at (1, 0): 5
Closest shape is the cyan rectangle at (1, 0) with distance 5</think>

<answer>(1, 0)</answer>