There are 6 shapes on a 10x10 grid. Which shape is closest to the brown 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: brown square at (9, 1)
Distance from target shape to red trapezoid at (5, 8): 11
Distance from target shape to cyan right_triangle at (2, 3): 9
Distance from target shape to purple rectangle at (1, 7): 14
Distance from target shape to pink square at (5, 2): 5
Distance from target shape to yellow rectangle at (4, 0): 6
Closest shape is the pink square at (5, 2) with distance 5</think>

<answer>(5, 2)</answer>