import java.util.Scanner;

public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	}

}
 import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	}

} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	} main {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int cnt =0; cnt 0 boolean isWin = false; isWin false for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		} int i=0 ; int i=0 ; i 0 i < n i n i++ i++ i {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		} {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		} int d1 = sc.nextInt(); d1 sc.nextInt() sc.nextInt sc int d2 = sc.nextInt(); d2 sc.nextInt() sc.nextInt sc if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			} d1 == d2 d1 d2 {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			} cnt++ cnt if( cnt == 3) {
					isWin =true;
				} cnt == 3 cnt 3 {
					isWin =true;
				} isWin =true isWin true {
				cnt =0;
			} cnt =0 cnt 0 System.out.println( isWin ? "Yes" :"No") System.out.println System.out System System.out isWin ? "Yes" :"No" isWin "Yes" "No" String[] args args public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	}

} public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		
		int cnt =0;
		boolean isWin = false;
		for( int i=0 ; i < n ; i++ ) {
			int d1 = sc.nextInt();
			int d2 = sc.nextInt();
			if( d1 == d2 ) {
				cnt++;
				if( cnt == 3) {
					isWin =true;
				}
			}else {
				cnt =0;
			}
		}
		System.out.println( isWin ? "Yes" :"No");

	}

}

