import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;
import java.util.*;
import java.util.Map.Entry;

public class Main {
	public static void main(String[] args) {
		FastScanner fs = new FastScanner();
	    int  n =fs.nextInt();
	    int count=0;
	    boolean present=false;
	    while(n-->0) {
	    	 int si=fs.nextInt();
	    	 int ei =fs.nextInt();
	    	 if(si==ei) {
	    		 count++;
	    	 }
	    	 if(count==3) {
	    		 present=true;
	    	 }
	    	 if(si!=ei) {
	    		 count=0;
	    	 }
	    }
	  if(present)System.out.println("Yes");
	  else System.out.println("No");
	}
	static void sort(int[] a) {
		ArrayList<Integer> l = new ArrayList<>();
		for(int i:a) l.add(i);
		Collections.sort(l);
		for(int i=0;i<l.size();i++) a[i]=l.get(i);
	}
	static class FastScanner {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer("");
		String next() {
			while(!st.hasMoreTokens())
				try {
					st = new StringTokenizer(br.readLine());
				}catch(IOException e) {
					e.printStackTrace();
				}
			return st.nextToken();
		}
		int nextInt() {
			return Integer.parseInt(next());
		}
		int[] readArray(int n) {
			int[] a = new int[n];
			for(int i=0;i<n;i++)a[i]=nextInt();
			return a;
		}
		long nextLong() {
			return Long.parseLong(next());
		}
	}

}

/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