Problem:
Score : 200 points

Problem Statement

La Confiserie d'ABC sells cakes at 4 dollars each and doughnuts at 7 dollars each.
Determine if there is a way to buy some of them for exactly N dollars. You can buy two or more doughnuts and two or more cakes, and you can also choose to buy zero doughnuts or zero cakes.

Constraints

N is an integer between 1 and 100, inclusive.

Input

Input is given from Standard Input in the following format:

N

Output

If there is a way to buy some cakes and some doughnuts for exactly N dollars, print Yes; otherwise, print No.

Sample Input 1

11

Sample Output 1

Yes

If you buy one cake and one doughnut, the total will be 4 + 7 = 11 dollars.

Sample Input 2

40

Sample Output 2

Yes

If you buy ten cakes, the total will be 4 \times 10 = 40 dollars.

Sample Input 3

3

Sample Output 3

No

The prices of cakes (4 dollars) and doughnuts (7 dollars) are both higher than 3 dollars, so there is no such way.

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;



class Program
{
    const int MOD = 1000000007;
    const int INF = 1 << 30;

    static void Main(string[] args)
    {
        Solve();
    }

    //static long GCD(long x,long y)
    //{
    //    if (y == 0) return x;
    //    return GCD(y, x % y);
    //}

    //static long LCM(long x,long y)
    //{
    //    return x * y / GCD(x, y);
    //}

    //static int keta(int x)
    //{
    //    string s = x.ToString();
    //    return s[s.Length - 1]-'0';
    //}

    static void Solve()
    {
        Scan sc = new Scan();
        write wr = new write();

        int N = sc.intarr[0];
        for(int i = 0; i <= 25; ++i)
        {
            for(int j = 0; j < 20; ++j)
            {
                if (i * 4 + j * 7 == N)
                {
                    wr.wri("Yes");
                    return ;
                    
                }
            }
        }
        wr.wri("No");

    }


}
    




class Scan
{
        public string str => Console.ReadLine();

        public string[] strarr => str.Split(' ');

        public long[] longarr => strarr.Select(long.Parse).ToArray();
        public int[] intarr => strarr.Select(int.Parse).ToArray();
    public char[] chararr => str.ToArray();


}



class write
{
    public void wri<Type>(Type x)
    {
        Console.WriteLine(x);
    }
}