#794. Two 12-sided dice
You roll two 12-sided dice (1-12). In how many ways can the sum be s? (The order matters.)
### Input
One integer s.
### Output
A number.
Examples
Input
19
Output
6
Input
24
Output
1
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.