#include<bits/stdc++.h>
using namespace std;
int a[110],b[110];
int main(){
	int n;
	cin >> n;
	for(int i = 1;i <= n;i++){
		cin >> a[i] >> b[i];
	}
	for(int i = 1;i <= n - 3;i++){
	    if(a[i] == b[i] && a[i + 1] == b[i + 1] && a[i + 2]== b[i + 2]){
	        cout << "Yes" << endl;
	        return 0;
	    }
	}
	cout << "No" << endl;
	return 0;
}