There are 3 shapes on a 10x10 grid. Which shape is closest to the orange 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: orange rectangle at (6, 4)
Distance from target shape to gray trapezoid at (3, 4): 3
Distance from target shape to yellow right_triangle at (9, 4): 3
Closest shape is the gray trapezoid at (3, 4) with distance 3</think>

<answer>(3, 4)</answer>