There are 6 shapes on a 9x9 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, 4)
Distance from target shape to green square at (5, 0): 7
Distance from target shape to orange trapezoid at (2, 1): 3
Distance from target shape to blue right_triangle at (6, 4): 4
Distance from target shape to pink trapezoid at (1, 1): 4
Distance from target shape to yellow rectangle at (2, 0): 4
Closest shape is the orange trapezoid at (2, 1) with distance 3</think>

<answer>(2, 1)</answer>