There are 3 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 (0, 1)
Distance from target shape to orange trapezoid at (7, 7): 13
Distance from target shape to gray rectangle at (3, 0): 4
Closest shape is the gray rectangle at (3, 0) with distance 4</think>

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