There are 3 shapes on a 6x6 grid. Which shape is closest to the cyan 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: cyan trapezoid at (5, 4)
Distance from target shape to orange square at (0, 0): 9
Distance from target shape to red rectangle at (3, 0): 6
Closest shape is the red rectangle at (3, 0) with distance 6</think>

<answer>(3, 0)</answer>