There are 5 shapes on a 7x7 grid. Which shape is closest to the blue 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: blue trapezoid at (4, 2)
Distance from target shape to gray trapezoid at (2, 6): 6
Distance from target shape to cyan rectangle at (4, 0): 2
Distance from target shape to red square at (2, 2): 2
Distance from target shape to yellow trapezoid at (5, 0): 3
Closest shape is the cyan rectangle at (4, 0) with distance 2</think>

<answer>(4, 0)</answer>