There are 5 shapes on a 10x10 grid. Which shape is closest to the cyan square 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 square at (6, 1)
Distance from target shape to pink right_triangle at (5, 3): 3
Distance from target shape to green square at (9, 1): 3
Distance from target shape to brown rectangle at (6, 2): 1
Distance from target shape to purple right_triangle at (9, 6): 8
Closest shape is the brown rectangle at (6, 2) with distance 1</think>

<answer>(6, 2)</answer>