There are 4 shapes on a 10x10 grid. Which shape is closest to the red 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: red trapezoid at (0, 8)
Distance from target shape to pink square at (6, 1): 13
Distance from target shape to blue rectangle at (8, 2): 14
Distance from target shape to green trapezoid at (0, 0): 8
Closest shape is the green trapezoid at (0, 0) with distance 8</think>

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