There are 2 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 (7, 3)
Distance from target shape to purple right_triangle at (6, 2): 2
Closest shape is the purple right_triangle at (6, 2) with distance 2</think>

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