#103. Three-digit number: sum of the digits
You get a three-digit number. Find its **sum of the digits**.
### Input
One integer (100 ≤ n ≤ 999).
### Output
One integer.
Examples
Input
475
Output
16
Input
549
Output
18
💡 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.