On the planet Mars a year lasts exactly n days (there are no leap years on Mars). But Martians have the same weeks as earthlings — 5 work days and then 2 days off. Your task is to determine the minimum possible and the maximum possible number of days off per year on Mars.

Input

The first line of the input contains a positive integer n (1 ≤ n ≤ 1 000 000) — the number of days in a year on Mars.

Output

Print two integers — the minimum possible and the maximum possible number of days off per year on Mars.

Examples

Input

14


Output

4 4


Input

2


Output

0 2

Note

In the first sample there are 14 days in a year on Mars, and therefore independently of the day a year starts with there will be exactly 4 days off .

In the second sample there are only 2 days in a year on Mars, and they can both be either work days or days off.
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

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

    static class TaskA {
        public void solve(int testNumber, MyReader in, PrintWriter out) {
            long n = in.nextLong();
            long min = Long.MAX_VALUE;
            long max = 0;


            max = 2 * (n / 7);
            long t = n % 7;
            if (t >= 2) max += 2;
            else if (t == 1) max++;

            min = 2 * (n / 7);
            if (t == 6) min++;


            out.println(min + " " + max);
        }

    }

    static class MyReader {
        private BufferedReader buffReader;
        private StringTokenizer strTokenizer;
        private static final int SIZE = 32768;

        public MyReader(InputStream inputStream) {
            buffReader = new BufferedReader(new InputStreamReader(inputStream), SIZE);
        }

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

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

    }
}

