import java.util.*;
class Main{
    public static void main(String[] args){
        Scanner sc= new Scanner(System.in);
        int n=sc.nextInt();
        int c=0;
        int f=0;
        for (int i=0;i<n;i++){
            int a=sc.nextInt();
            int b=sc.nextInt();
            if (a==b){
                c++;
                if (c==3){
                    f=1;
                    System.out.print("Yes");
                    break;
                }
            }
            else
                c=0;
        }
        if(f==0)
            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