4rth test case not passing in online ide

#1

getting correct solution when running code on local eclipse ide. but not 4th test case is failing in online ide.
here is code:
import java.util.*;
public class PairSumInArray{

static void pairSum(List<Integer> ar,int n,int sum){
	int l = 0;
	int r = n-1;
	while(l<=r){
		if(ar.get(l)+ar.get(r)==sum){
			System.out.println(ar.get(l)+" and "+ar.get(r));
			l++;
		}else if(ar.get(l)+ar.get(r)<sum){
			l++;
		}else{
			r--;
		}
	}
}


public static void main(String[] args){
	Scanner sc = new Scanner(System.in);
	int n = sc.nextInt();
	List<Integer> ar = new ArrayList<>();
	for(int i=0;i<n;i++){
		ar.add(sc.nextInt());
	}
	int sum = sc.nextInt();
	Collections.sort(ar);
	pairSum(ar,n, sum);
}

}

#2

@adarshkumar4145
import java.util.*;
public class Main{

static void pairSum(List ar,int n,int sum){
int l = 0;
int r = n-1;
while(l<r){
if(ar.get(l)+ar.get®==sum){
System.out.println(ar.get(l)+" and "+ar.get®);
l++;

	}else if(ar.get(l)+ar.get(r)<sum){
		l++;
	}else{
		r--;
	}
}

}

public static void main(String[] args){
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
List ar = new ArrayList<>();
for(int i=0;i<n;i++){
ar.add(sc.nextInt());
}
int sum = sc.nextInt();
Collections.sort(ar);
pairSum(ar,n, sum);
}
}

here is correct code.
the condition has to be while(l<r)

#3

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