import java.util.*;
public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	}

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

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	} main {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n=sc.nextInt(); n sc.nextInt() sc.nextInt sc int strike=0; strike 0 for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         } int i=0; int i=0; i 0 i<n i n i++ i++ i {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         } {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         } int x=sc.nextInt(); x sc.nextInt() sc.nextInt sc int y=sc.nextInt(); y sc.nextInt() sc.nextInt sc if(x==y)strike++;
        	 else strike=0; x==y x y strike++ strike strike=0 strike 0 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 } strike==3 strike 3 {
        		 System.out.println("Yes");
        		 return;
        	 } System.out.println("Yes") System.out.println System.out System System.out "Yes" return; System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	}

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

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
         int n=sc.nextInt();
         int strike=0;
         for(int i=0;i<n;i++) {
        	 int x=sc.nextInt();
        	 int y=sc.nextInt();
        	 if(x==y)strike++;
        	 else strike=0;
        	 if(strike==3) {
        		 System.out.println("Yes");
        		 return;
        	 }
         }
         System.out.println("No");

	}

}