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

import static java.lang.Math.*;

public class Main {
  private void solve() {
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int res = 0;
    for(int cnt5=0; cnt5*5<=N; ++cnt5) {
      for(int cnt2=0; cnt2<=cnt5 && cnt2*2<=N; ++cnt2) {
        for(int cnt3=0; cnt3*3<=N; ++cnt3) {
          if(cnt5*5 + cnt2*2 + cnt3*3 == N) { ++res; }
        }
      }
    }
    System.out.println(res);
  }

  public static void main(String[] args) {
    new Main().solve();
  }
}