import java.util.*;
import java.lang.*;
public class Main{
public static void main(String[] args)
{
Scanner in=new Scanner(System.in);
double res=max(1.0,2.3,3.7,4.9,5.7);
System.out.println(res);
}
public static double max(double... values)//将多个变量储存在数组中
{
double largest=Double.NEGATIVE_INFINITY;
for(double v:values)
{
if(v>largest)
{
largest=v;
}
}
return largest;
}
}



