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

<answer>(3, 2)</answer>