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.*;
public class Main {

	public void doIt(){
		Scanner sc = new Scanner(System.in);
		while(sc.hasNext()){
			int n = sc.nextInt();
			int count = 0;
			for(int i=0; i < 10; i++){
				for(int j=0; j < 10; j++){
					for(int k=0; k < 10; k++){
						int l = n - i - j - k;
						if(0 <= l && l <= 9){
							count++;
						}
					}
				}
			}
			System.out.println(count);
		}
	}
	public static void main(String[] args) {
		Main obj = new Main();
		obj.doIt();

	}

}