There are 5 shapes on a 7x7 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 (3, 4)
Distance from target shape to red right_triangle at (6, 2): 5
Distance from target shape to pink right_triangle at (5, 2): 4
Distance from target shape to orange square at (3, 1): 3
Distance from target shape to purple square at (0, 6): 5
Closest shape is the orange square at (3, 1) with distance 3</think>

<answer>(3, 1)</answer>