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.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.StringTokenizer;

public class Main {
    
    public static void main(String[] args) throws IOException {
        Reader.init(System.in);
        StringBuilder s=new StringBuilder();
        int n=Reader.nextInt();
        int num=n/7*2;
        int cur=n%7;
        if(cur>5)
            num+=cur-5;
        s.append(num).append(' ');
        num=n/7*2;
        cur=n%7;
        if(cur==1) num++;
        else if(cur>1) num+=2;
        s.append(num).append('\n');
        System.out.print(s);
    }
    
}

class Reader {
    
    static StringTokenizer tokenizer;
    static BufferedReader reader;
    
    public static void init(InputStream input) throws UnsupportedEncodingException {
        reader=new BufferedReader(new InputStreamReader(input,"UTF-8"));
        tokenizer=new StringTokenizer("");
    }
    
    public static String next() throws IOException {
        while(!tokenizer.hasMoreTokens())
            tokenizer=new StringTokenizer(reader.readLine());
        return tokenizer.nextToken();
    }
    
    public static String nextLine() throws IOException {
        return reader.readLine();
    }
    
    public static int nextInt() throws IOException {
        return Integer.parseInt(next());
    }
    
    public static double nextDouble() throws IOException {
        return Double.parseDouble(next());
    }
    
    public static long nextLong() throws IOException {
        return Long.parseLong(next());
    }
}