import java.util.*; 
import java.lang.*; 


public class Main{
    
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
                
                int N = scan.nextInt();
                
                int cnt = 0;
                for(int i=0; i<N; i++){
                    int a = scan.nextInt();
                    int b = scan.nextInt();
                    
                    if(a==b){
                        cnt++;
                    }else{
                        cnt=0;
                    }
                    
                    if(cnt==3){
                        System.out.println("Yes");
                        System.exit(0);
                    }
                }
                
                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