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;
        boolean flg = false;
        for (int i = 0; i < N; i++) {
            int a = sc.nextInt();
            int b = sc.nextInt();
            if (a == b){
                count++;
            } else {
                count = 0;
            } 
            if (count >= 3) {
                flg = true;
                break;
            }
        } 
        if (flg == true) {
            System.out.print("Yes");
        } else {
            System.out.print("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