import java.util.*;

public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		int n = scan.nextInt();
		int old ;
		boolean ans = false;
		int count = 0;
		for(int i = 0;i < n;++i){
			int d_1 = scan.nextInt();
			int d_2 = scan.nextInt();

			if (d_1 == d_2){
				count++;
				if(count == 3) ans = true;
			}else{
				count = 0;
			}
		}
		System.out.print(ans?"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