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: Time Limit Exceeded)

#include <stdio.h>

int main(void)
{
	int i, j, k, l, n, ans;
	
	while (1){
		ans = 0;
		scanf("%d", &n);
		
		for (i = 0; i <= 9; i++){
			for (j = 0; j <= 9; j++){
				for (k = 0; k <= 9; k++){
					for (l = 0; l <= 9; l++){
						if (i + j + k + l == n){
							ans++;
						}
					}
				}
			}
		}
		printf("%d\n", ans);
	}
	return (0);
}