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 flg=0;
    while(n-->0){
      int x = sc.nextInt();
      int y = sc.nextInt();
      
      if(x==y){
        c++;
        if(c>=3){
        flg=1;
      }
      }
      else{
        c=0;
      }
    }
    if(flg==0){
      System.out.println("No");
    }
    else{
      System.out.println("Yes");
    }
  }
}
/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