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.util.*;
import java.io.*;

/*
   java sucks
*/
public class Main
{
    public static void main(String[] args)
    {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        new Task().solve(1, in, out);
        out.close();
    }

    static class Task
    {
        public void solve(int testNumber, InputReader in, PrintWriter out)
        {
            int n=in.nextInt();
            int mx=(n/7)*2;
            int mn=(n/7)*2;
            
            if(n%7>=2) mx+=2;
            else if(n%7>=1) mx+=1;
            if(n%7==6) mn++;
            out.println(mn+" "+mx);
           
        }
    }
    static class InputReader
    {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream)
        {
            reader = new BufferedReader(new InputStreamReader(stream), 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());
        }
    }
}
