There are 2 shapes on a 5x5 grid. Which shape is closest to the orange 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: orange trapezoid at (2, 1)
Distance from target shape to red rectangle at (1, 3): 3
Closest shape is the red rectangle at (1, 3) with distance 3</think>

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