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)

#!/usr/bin/env ruby

while line = gets
  n=line.chomp!.to_i

  cnt = 0

  0.upto(9) do |a|
    0.upto(9) do |b|
      0.upto(9) do |c|
        0.upto(9) do |d|
          cnt += 1 if (a+b+c+d) == n
        end
      end
    end
  end

  puts cnt
end