There are 6 shapes on a 10x10 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 orange rectangle at (8, 6): 12
Distance from target shape to purple square at (1, 7): 8
Distance from target shape to brown trapezoid at (8, 7): 13
Distance from target shape to green square at (8, 0): 6
Distance from target shape to gray square at (1, 4): 5
Closest shape is the gray square at (1, 4) with distance 5</think>

<answer>(1, 4)</answer>