There are 5 shapes on a 6x6 grid. Which shape is closest to the brown 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: brown trapezoid at (3, 3)
Distance from target shape to blue trapezoid at (5, 0): 5
Distance from target shape to purple trapezoid at (4, 2): 2
Distance from target shape to cyan right_triangle at (1, 4): 3
Distance from target shape to green square at (5, 1): 4
Closest shape is the purple trapezoid at (4, 2) with distance 2</think>

<answer>(4, 2)</answer>