import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
class Main{
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      	int n = Integer.parseInt(br.readLine().trim());
      	int count=0;
      	boolean flag = false;
      	for(int i=1;i<=n;i++){
          String s[] = br.readLine().trim().split(" ");
          int a = Integer.parseInt(s[0]);
          int b = Integer.parseInt(s[1]);
          if(a == b){
				count++;
          }
          else{
            	count=0;
          }
          if(!flag && count == 3){
            	System.out.println("Yes");
          		flag = true;
          }
        }
      	if(!flag && count!=3)
      		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