/*
import java.util.*;
class Main{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n=sc.nextInt(),j=-1,i=0,c1=-1;
double [] a = new double[10001];
double t=0,max=-1,sum=1,a1;
if(n==1) {
a1= sc.nextDouble();
System.out.printf("%.3f",a1);
}
else {
for(i=0;i<n;i++) {
a[i]=sc.nextDouble();
}
for(int c=0 ; c<n;c++) {
c1++;
for(i=c1;i<n;i++) {
for(j=c1;j<=i;j++) {
sum*=a[j];
t=sum;
if(t>max) {
max=t;
}
}
sum=1;
}
}
System.out.printf("%.3f",max);
}
}
}
*/