There are 6 shapes on a 5x5 grid. Which shape is closest to the orange square 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 square at (4, 0)
Distance from target shape to yellow right_triangle at (4, 1): 1
Distance from target shape to gray trapezoid at (1, 4): 7
Distance from target shape to purple rectangle at (0, 2): 6
Distance from target shape to brown rectangle at (3, 3): 4
Distance from target shape to red square at (2, 0): 2
Closest shape is the yellow right_triangle at (4, 1) with distance 1</think>

<answer>(4, 1)</answer>