There are 4 shapes on a 7x7 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 (2, 1)
Distance from target shape to cyan rectangle at (2, 6): 5
Distance from target shape to red right_triangle at (0, 6): 7
Distance from target shape to blue square at (5, 4): 6
Closest shape is the cyan rectangle at (2, 6) with distance 5</think>

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