import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int n1=n;
        if(n%2!=0)
           n1=n-1;
        int k=0;
        int b=0;
        for(int a0 = 0; a0 < n1; a0++)
        {
            int x = in.nextInt();
            b=x;
            k^=x;
            int y = in.nextInt();
        }
        if(n%2==0)
            {
            if(k==0)
                System.out.println("YES");
            else 
                System.out.println("NO");
        }
        else 
        {
            int x=in.nextInt();
            if(x==b)
                {
                if(k==0)
                    System.out.println("YES");
                else
                    System.out.println("NO");
            }
            else
                System.out.println("NO");
                
        }
            
        
    }
}