Problem:
Sum of 4 Integers

Write a program which reads an integer n and identifies the number of combinations of a, b, c and d (0 ≤ a, b, c, d ≤ 9) which meet the following equality:

a + b + c + d = n

For example, for n = 35, we have 4 different combinations of (a, b, c, d): (8, 9, 9, 9), (9, 8, 9, 9), (9, 9, 8, 9), and (9, 9, 9, 8).

Input

The input consists of several datasets. Each dataset consists of n (1 ≤ n ≤ 50) in a line. The number of datasets is less than or equal to 50.

Output

Print the number of combination in a line.

Sample Input

35
1

Output for the Sample Input

4
4

Solution in C# (judge verdict: Accepted)

using System;

public class p0008
{
	static int func(int n, int res, int t){
		if(n == 4) return (t == res)? 1: 0;
		int s = 0;
		for(int i = 0; i < 10; ++i)
			s += func(n+1, res, t+i);
		
		return s;
	}
	
	static void Main(string[] args){
		int n;
		string str;
		while((str = Console.ReadLine()) != null){
			n = int.Parse(str);
			
			Console.WriteLine("{0}", func(0, n, 0));
		}
	}
}