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 static java.lang.System.out;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Set;


import java.util.StringTokenizer;

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Lotfi
 */
public class horseshoe {
    public static void main(String[] args) {
        IO sc = new IO (System.in);
    int n=sc.nextInt();
    int min=n/7*2;
   int max=n/7*2+Math.min(2, n%7);
   if(n%7==6)min++;
        System.out.println(min+" "+max);
    }
    public static class IO {
  private BufferedReader br;
  private StringTokenizer st;
  public IO(InputStream inputStream){
    br = new BufferedReader(new InputStreamReader(inputStream));
  }
  public String nextLine() throws IOException{
      return br.readLine();
  }
  public String next() {
    while (st == null || !st.hasMoreTokens()){
      try {
        st = new StringTokenizer(br.readLine());
      } catch (IOException ignored){}
    }
    return st.nextToken();
  }
  public int nextInt() {
    return Integer.parseInt(next());
  }
  public long nextLong() {
    return Long.parseLong(next());
  }
 
}
}
