Types: L: float, R: float, N: int, X: List[int], Y: List[int]  
Ranges: 1.0 ≤ L ≤ 500.0, 1.0 ≤ R ≤ 10.0, 3 ≤ N ≤ 100, -1000 ≤ Xᵢ ≤ 1000, -1000 ≤ Yᵢ ≤ 1000  
Addtl Info: The number of datasets is no more than 100. The end of the input is represented by "0 0 0". The polygon vertices are arranged in a counter-clockwise order. The polygon is simple (its border never crosses or touches itself).