import java.math.*; import java.util.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int[] tree = new int[n]; double max=0; for(int i=0;i=k){ min=temp+0.00000001; }else{ max=temp-0.00000001; } } System.out.println(max); } }