Given a string S consisting of letters, digits, and spaces, remove the letters and print the sum of the numbers within the string. The string may contain extra spaces.
Write a program that takes as input a string and outputs the sum of the numbers in the string.
### Input
- A single line containing the string S.
### Output
- Print the sum of the numbers within the string S. It is guaranteed that the answer does not exceed 1018
### Constraints
- 1≤|S|≤1000.
### Sample test
t123452e30573qq3
Output:
488
