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 JAVA (judge verdict: Accepted)

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		while (stdIn.hasNextInt()) {
			int n = stdIn.nextInt();
			int a, b, c, d = 0;
			int count = 0;
			for (int w = 0; w < 10; w++) {
				for (int x = 0; x < 10; x++) {
					for (int y = 0; y < 10; y++) {
						for (int z = 0; z < 10; z++) {
							if (w + x + y + z == n)
								count++;
						}
					}
				}
			}
			System.out.println(count);
		}
	}
}