import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		
		int dd = 0;
		for(int i=0; i<n;i++) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if ( d1 == d2 ) {
				dd++;
				if(dd>=3) {
					System.out.println("Yes");
					System.exit(0);
				}
			}else{
				dd=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