import java.util.*;
public class Main {
  public static void main (String[] args){
	Scanner sc = new Scanner(System.in);
    boolean result = false;
    int trial_num = sc.nextInt();
    int[][] combi = new int[trial_num][2];
    for(int i = 0; i < trial_num; i++) {
		for(int j = 0; j < 2; j++){
        	combi[i][j] = sc.nextInt();
        }
    }
    for(int i = 0; i < trial_num - 2; i++) {
        if(combi[i][0] == combi[i][1] 
           && combi[i+1][0] == combi[i+1][1] && combi[i+2][0] == combi[i+2][1])
     		result = true;
    }
    if(result) 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