import java.util.*;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());

		int best = 0;
		int ren = 0;
		for (int i = 0; i < n; i++) {
			long a = Long.parseLong(sc.next());
			long b = Long.parseLong(sc.next());
			ren = (a == b) ? (ren + 1) : (0);

			if (best <= ren) {
				best = ren;
			}
		}

		System.out.println(best >= 3 ? "Yes" : "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