import java.util.*;

class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int s=sc.nextInt();
    int d1=0,d2=0,count=0;
    for(int i=0;i<s;i++){
      d1=sc.nextInt();
      d2=sc.nextInt();
      if(d1==d2){
        count++;
        if(count==3)break;
      }
      else{
        count=0;
      }
      
    }
    if(count>=3)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