Problems
Sum of digits in the text
Sum of digits in the text
The text is given. Find the sum of all digits in it.
\InputFile
Contains sequence of characters --- a text.
\OutputFile
Print the sum of all digits in the text.
\Examples
Text contains digits $4, 1, 2, 4$. Their sum is $4 + 1 + 2 + 4 = 11$.
Input example #1
Cats =="+41" Dogs 2 and 4pigs
Output example #1
11