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

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