import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    }

    static class BGoToJail {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        }

    }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    }

    static class BGoToJail {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) BGoToJail solver = new BGoToJail(); solver new BGoToJail() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class BGoToJail {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        }

    } BGoToJail public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        } solve {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        } int n = Integer.parseInt(in.next()); n Integer.parseInt(in.next()) Integer.parseInt Integer in.next() in.next in int cnt = 0; cnt 0 int rencnt = 0; rencnt 0 for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            } {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            } int d1 = Integer.parseInt(in.next()); d1 Integer.parseInt(in.next()) Integer.parseInt Integer in.next() in.next in int d2 = Integer.parseInt(in.next()); d2 Integer.parseInt(in.next()) Integer.parseInt Integer in.next() in.next in if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                } d1 == d2 d1 d2 {
                    cnt++;
                    rencnt++;
                } cnt++ cnt rencnt++ rencnt {
                    if (rencnt < 3) rencnt = 0;
                } if (rencnt < 3) rencnt = 0; rencnt < 3 rencnt 3 rencnt = 0 rencnt 0 boolean ok = false; ok false if (rencnt >= 3 && cnt >= 3) ok = true; rencnt >= 3 && cnt >= 3 rencnt >= 3 rencnt 3 cnt >= 3 cnt 3 ok = true ok true out.println(ok ? "Yes" : "No") out.println out ok ? "Yes" : "No" ok "Yes" "No" int testNumber testNumber Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    }

    static class BGoToJail {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        }

    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    }

    static class BGoToJail {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        BGoToJail solver = new BGoToJail();
        solver.solve(1, in, out);
        out.close();
    }

    static class BGoToJail {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            // 入力
            int n = Integer.parseInt(in.next());
            int cnt = 0;
            int rencnt = 0;
            for (int i = 0; i < n; i++) {
                int d1 = Integer.parseInt(in.next());
                int d2 = Integer.parseInt(in.next());
                if (d1 == d2) {
                    cnt++;
                    rencnt++;
                } else {
                    if (rencnt < 3) rencnt = 0;
                }
            }

            boolean ok = false;
            if (rencnt >= 3 && cnt >= 3) ok = true;
            out.println(ok ? "Yes" : "No");

        }

    }
}

