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

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