/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int []arr={1,3,4,5,8};
		int n=arr.length;
		int l=0,e=n-1,k=5,c=0;
		while(l < e){
			if(arr[l]+arr[e] > k){
				c+=(e-l+1)-1;
				System.out.println(c +"l==>"+l+"e==>"+e);
				e--;
			}
			else{
				l++;
			}
		}
	}
}