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);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task
    {
        public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        }

        private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    }

    static class CPUtils
    {
        public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        }

        public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        }

    }
}
 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);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task
    {
        public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        }

        private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    }

    static class CPUtils
    {
        public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        }

        public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        }

    }
} 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);
        Task solver = new Task();
        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);
        Task solver = new Task();
        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) Task solver = new Task(); solver new Task() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class Task
    {
        public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        }

        private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    } Task public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        } solve {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        } int T = 1; T 1 while (T-- > 0)
            {
                solveOne(in, out);
            } T-- > 0 T-- T 0 {
                solveOne(in, out);
            } solveOne(in, out) solveOne in out int testNumber testNumber Scanner in in PrintWriter out out private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        } solveOne {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        } int N = in.nextInt(); N in.nextInt() in.nextInt in int M[][] = CPUtils.readIntMatrix(N, 2, in); M CPUtils.readIntMatrix(N, 2, in) CPUtils.readIntMatrix CPUtils N 2 in for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            } int i = 0; int i = 0; i 0 i < N - 2 i N - 2 N 2 i++ i++ i {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            } {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            } if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                } M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1] M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1] M[i][0] == M[i][1] M[i][0] M[i] M i 0 M[i][1] M[i] M i 1 M[i + 1][0] == M[i + 1][1] M[i + 1][0] M[i + 1] M i + 1 i 1 0 M[i + 1][1] M[i + 1] M i + 1 i 1 1 M[i + 2][0] == M[i + 2][1] M[i + 2][0] M[i + 2] M i + 2 i 2 0 M[i + 2][1] M[i + 2] M i + 2 i 2 1 {
                    out.println("Yes");
                    return;
                } out.println("Yes") out.println out "Yes" return; out.println("No") out.println out "No" Scanner in in PrintWriter out out static class CPUtils
    {
        public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        }

        public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        }

    } CPUtils public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        } readIntArray {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        } int[] array = new int[size]; array new int[size] size for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            } int i = 0; int i = 0; i 0 i < size i size i++ i++ i {
                array[i] = in.nextInt();
            } {
                array[i] = in.nextInt();
            } array[i] = in.nextInt() array[i] array i in.nextInt() in.nextInt in return array; array int size size Scanner in in public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        } readIntMatrix {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        } int[][] matrix = new int[rows][columns]; matrix new int[rows][columns] rows columns for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            } int i = 0; int i = 0; i 0 i < rows i rows i++ i++ i {
                matrix[i] = CPUtils.readIntArray(columns, in);
            } {
                matrix[i] = CPUtils.readIntArray(columns, in);
            } matrix[i] = CPUtils.readIntArray(columns, in) matrix[i] matrix i CPUtils.readIntArray(columns, in) CPUtils.readIntArray CPUtils columns in return matrix; matrix int rows rows int columns columns Scanner in in 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);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task
    {
        public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        }

        private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    }

    static class CPUtils
    {
        public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        }

        public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        }

    }
} 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);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task
    {
        public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        }

        private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    }

    static class CPUtils
    {
        public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        }

        public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        }

    }
} 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);
        Task solver = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task
    {
        public void solve(int testNumber, Scanner in, PrintWriter out)
        {
            int T = 1;
            while (T-- > 0)
            {
                solveOne(in, out);
            }
        }

        private void solveOne(Scanner in, PrintWriter out)
        {
            int N = in.nextInt();
            int M[][] = CPUtils.readIntMatrix(N, 2, in);

            for (int i = 0; i < N - 2; i++)
            {
                if (M[i][0] == M[i][1] && M[i + 1][0] == M[i + 1][1] && M[i + 2][0] == M[i + 2][1])
                {
                    out.println("Yes");
                    return;
                }
            }
            out.println("No");
        }

    }

    static class CPUtils
    {
        public static int[] readIntArray(int size, Scanner in)
        {
            int[] array = new int[size];
            for (int i = 0; i < size; i++)
            {
                array[i] = in.nextInt();
            }
            return array;
        }

        public static int[][] readIntMatrix(int rows, int columns, Scanner in)
        {
            int[][] matrix = new int[rows][columns];
            for (int i = 0; i < rows; i++)
            {
                matrix[i] = CPUtils.readIntArray(columns, in);
            }
            return matrix;
        }

    }
}

