import java.util.Scanner;
 
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int N=sc.nextInt();
    int X[] = new int[N];
    int Y[] = new int[N];
    for (int i = 0; i < N; i++) {
        X[i] = sc.nextInt();
        Y[i] = sc.nextInt();
    }
    int ans=0;
    for (int i = 0; i < N-2; i++) {
    	if(X[i]==Y[i]&&X[i+1]==Y[i+1]&&X[i+2]==Y[i+2]) {
    		ans++;
    	}
    }
    if(ans>0) {
    	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