There are 4 shapes on a 10x10 grid. Which shape is closest to the cyan rectangle 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 rectangle at (2, 4)
Distance from target shape to yellow right_triangle at (1, 4): 1
Distance from target shape to red right_triangle at (4, 4): 2
Distance from target shape to brown trapezoid at (1, 3): 2
Closest shape is the yellow right_triangle at (1, 4) with distance 1</think>

<answer>(1, 4)</answer>