There are 6 shapes on a 8x8 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 (7, 2)
Distance from target shape to pink right_triangle at (7, 0): 2
Distance from target shape to green right_triangle at (7, 5): 3
Distance from target shape to yellow square at (1, 1): 7
Distance from target shape to brown right_triangle at (0, 4): 9
Distance from target shape to cyan trapezoid at (5, 3): 3
Closest shape is the pink right_triangle at (7, 0) with distance 2</think>

<answer>(7, 0)</answer>