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 Python (judge verdict: Accepted)

import sys
for line in sys.stdin:
	n = int(line)
	cnt = 0
	for i in range(0, 10):
		for j in range(0, 10):
			for k in range(0, 10):
				for p in range(0, 10):
					if i+j+k+p == n:
						cnt += 1
						break
				if i+j+k == n: break
			if i+j == n: break
		if i == n: break
	print cnt