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 Ruby (judge verdict: Accepted)

while n=gets
	n=n.to_i
	count=0
	
	a=0
	
	while a < 10
	b=0
		while b < 10
	c=0
			while c < 10
	d=0
				while d < 10
					if a+b+c+d == n
						count += 1
#						puts "#{a} #{b} #{c} #{d} #{count}"
					end
					d+=1
				end
				c+=1
			end
			b+=1
		end
		a+=1
	end
	puts count
end