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

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