There are 4 shapes on a 9x9 grid. Which shape is closest to the orange 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: orange square at (6, 2)
Distance from target shape to cyan square at (2, 3): 5
Distance from target shape to yellow right_triangle at (5, 1): 2
Distance from target shape to red right_triangle at (0, 1): 7
Closest shape is the yellow right_triangle at (5, 1) with distance 2</think>

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