There are 3 shapes on a 9x9 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 (1, 6)
Distance from target shape to yellow trapezoid at (1, 3): 3
Distance from target shape to red square at (6, 5): 6
Closest shape is the yellow trapezoid at (1, 3) with distance 3</think>

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