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 PHP (judge verdict: Accepted)

<?php
while (fscanf(STDIN, "%d", $n)) {
    $ans = 0;
    for ($a = 0; $a < 10; $a++) {
        for ($b = 0; $b < 10; $b++) {
            for ($c = 0; $c < 10; $c++) {
                for ($d = 0; $d < 10; $d++) {
                    if ($a + $b + $c + $d == $n) {
                        $ans++;
                    }
                }
            }
        }
    }
    echo $ans . "\n";
}