There are 2 shapes on a 5x5 grid. Which shape is closest to the gray 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: gray trapezoid at (1, 4)
Distance from target shape to blue right_triangle at (4, 2): 5
Closest shape is the blue right_triangle at (4, 2) with distance 5</think>

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