import java.math.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int count = 0;
    for (int i = 0; i < n; i++) {
      boolean b = sc.nextInt() == sc.nextInt();
      if (b) {
        count++;
        if (count >= 3) {
          System.out.println("Yes");
          return;
        }
      } else {
        count = 0;
      }
    }
    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