import java.util.Scanner;
class Main{
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n=in.nextInt();
		int count=0;
		boolean flag=false;
		for (int i=0;i<n;i++){
			int a=in.nextInt();
			int b=in.nextInt();
			if (a==b) count ++;
			else count =0;
			if (count>=3) flag=true;
		}
		if (flag) System.out.println("Yes");
		else 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