#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int n,x,y;
    cin>> n;
    int sumx=0,sumy=0;
    for(int i=0;i<n;i++)
        {   cin>>x>>y;
            sumx^=x;
            sumy^=y;
    }
        if(n%2==0&&(sumx==0||sumy==0))  
            cout<<"YES";
        else if(n%2!=0&&(sumx==x||sumy==y))
            cout<<"YES";
        else 
            cout<<"NO";
    return 0;
}