import java.io.*;
    import java.util.*;
    public class Main {
        static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        static int N = 200010, M = N, INF = Integer.MAX_VALUE;
        static int MOD = (int)1e9 + 7;
        static double EPS = 1e-7;
        static int dx[] = new int[N], dy[] = new int[N];

        static int h[] = new int[N], to[] = new int[M], ne[] = new int[M], w[] = new int[M], idx;
        static boolean st[] = new boolean[N];
        static int a[] = new int[N];
        static int b[] = new int[N];
        static InputReader sc = new InputReader();
        static char cs[] = new char[N];
        static int n, m, x, y;

        static void add(int a, int b) {
            to[idx] = b; ne[idx] = h[a]; h[a] = idx ++ ;
        }

        public static void main(String[] args) throws IOException {
            n = sc.nextInt();
        }

        static int gcd(int a, int b) { return b == 0 ? a : gcd(b, a % b); }
        static int lcm(int a, int b) { return (a * b) / gcd(a, b); }
        static class InputReader {
            public BufferedReader reader;
            public StringTokenizer tokenizer;

            public InputReader() {
                reader = new BufferedReader(new InputStreamReader(System.in), 32768);
                tokenizer = null;
            }

            public String next() {
                while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                    try {
                        tokenizer = new StringTokenizer(reader.readLine());
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }
                }
                return tokenizer.nextToken();
            }

            public int nextInt() {
                return Integer.parseInt(next());
            }

            public long nextLong() {
                return Long.parseLong(next());
            }
        }
    }