There are 2 shapes on a 10x10 grid. Which shape is closest to the green 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: green rectangle at (7, 4)
Distance from target shape to gray trapezoid at (1, 3): 7
Closest shape is the gray trapezoid at (1, 3) with distance 7</think>

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