There are 6 shapes on a 10x10 grid. Which shape is closest to the cyan rectangle 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 rectangle at (7, 3)
Distance from target shape to yellow rectangle at (8, 0): 4
Distance from target shape to gray square at (5, 0): 5
Distance from target shape to red trapezoid at (2, 4): 6
Distance from target shape to brown trapezoid at (8, 7): 5
Distance from target shape to purple rectangle at (1, 2): 7
Closest shape is the yellow rectangle at (8, 0) with distance 4</think>

<answer>(8, 0)</answer>