There are 3 shapes on a 5x5 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 (4, 1)
Distance from target shape to pink rectangle at (4, 2): 1
Distance from target shape to gray right_triangle at (3, 0): 2
Closest shape is the pink rectangle at (4, 2) with distance 1</think>

<answer>(4, 2)</answer>