There are 5 shapes on a 6x6 grid. Which shape is closest to the red square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: red square at (2, 0)
Distance from target shape to brown square at (5, 0): 3
Distance from target shape to cyan square at (5, 3): 6
Distance from target shape to gray square at (3, 4): 5
Distance from target shape to green rectangle at (1, 3): 4
Closest shape is the brown square at (5, 0) with distance 3</think>

<answer>(5, 0)</answer>