There are 3 shapes on a 7x7 grid. Which shape is closest to the cyan trapezoid 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 trapezoid at (4, 1)
Distance from target shape to brown trapezoid at (5, 2): 2
Distance from target shape to blue trapezoid at (5, 4): 4
Closest shape is the brown trapezoid at (5, 2) with distance 2</think>

<answer>(5, 2)</answer>