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

<answer>(5, 1)</answer>