import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();

		int count = 0;
		for ( int i = 0; i < n; i++) {
			if ( sc.nextInt()== sc.nextInt()) {
				count++;
			} else {
				count = 0;
			}

			if ( count == 3) {
				System.out.println("Yes");
				return;
			}

		}
		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