# Counting

Torsten knows how to count, but he is just now learning how to write numbers. He has already learned the digits 1, 2, 3 and 4. But he does not yet realize that 4 is different than 1, so he thinks that 4 is just another way to write 1.

He is having fun with a little game he created: he makes numbers with the four digits that he knows and sums their values. For example:

```  132 = 1 + 3 + 2 = 6
112314 = 1 + 1 + 2 + 3 + 1 + 1 = 9
```

Torsten now wants to know how many such numbers he can create whose sum is a number n. For n = 2, he can make 5 numbers: 11, 14, 41, 44 and 2. (He knows how to count up beyond five, just not how to write it.) However, he can't figure out this sum for n greater than 2, and asks for your help.

## Input: counting.in

Input will consist of an arbitrary number of integers n such that 1 ≤ n ≤ 1,000. You must read until you reach the end of file.

## Output: counting.out

For each integer read, output a single integer on a line stating how many numbers Torsten can make such that the sum of their digits is equal to n.

```2
3
```

```5
13
```