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(){
	int n;
	int a,b,c,d;
	int cont;
	while(scanf("%d",&n)){
		cont=0;
		for(a=0;a<10;a++)
		for(b=0;b<10;b++)
		for(c=0;c<10;c++)
		for(d=0;d<10;d++)if(n==a+b+c+d)cont++;
		printf("%d\n",cont);
	}

}