There are 5 shapes on a 10x10 grid. Which shape is closest to the pink 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: pink rectangle at (2, 0)
Distance from target shape to yellow right_triangle at (1, 7): 8
Distance from target shape to blue rectangle at (5, 4): 7
Distance from target shape to red trapezoid at (1, 3): 4
Distance from target shape to cyan trapezoid at (9, 6): 13
Closest shape is the red trapezoid at (1, 3) with distance 4</think>

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