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

<answer>(1, 0)</answer>