import java.util.*;

public class Main {
    

    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
       
        int N = sc.nextInt();int c=0,i=0;boolean flag=false;
        for(int x=1;x<=N;++x){
            int a=sc.nextInt();
            int b=sc.nextInt();//String s1="",s2="";
            
            if(b-a==0){
                if(i==x || i+1==x){
                    c++;i=x;
                    }
                
            }
            else{
                i=x;c=0;
            }
            if(c==3){
                flag=true;
                break;
            }
        }
            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