
import java.util.Scanner;

/**
 * Created by enpingkuang on 2020/9/19 7:53 下午
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int ans = 0;
        int tmp = 0;
        for(int i = 0;i<n;i++){
            int x,y;
            x = scanner.nextInt();
            y = scanner.nextInt();
            if(x == y){
                tmp++;
                ans = Math.max(ans,tmp);
            }else{
                tmp = 0;
            }
        }
        if(ans >= 3){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }
    }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz