import java.util.Scanner;

public class Main {

	public static long[] nums;

	public static void main(String[] args) {

		Scanner scan = new Scanner(System.in);
		int N = scan.nextInt();
		boolean flag1 = false;
		boolean flag2 = false;

		for (int i = 0; i < N; i++) {
			int D1 = scan.nextInt();
			int D2 = scan.nextInt();

			if (D1 == D2 && flag1 && flag2) {
				System.out.println("Yes");
				System.exit(0);
			}

			flag1 = flag2;
			flag2 = D1 == D2;
		}

		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