There are 4 shapes on a 9x9 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 (1, 6)
Distance from target shape to pink square at (8, 5): 8
Distance from target shape to blue square at (5, 0): 10
Distance from target shape to yellow square at (3, 3): 5
Closest shape is the yellow square at (3, 3) with distance 5</think>

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