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 $10^{18}$
### Constraints
- $1 \le |S| \le 1000$.
### Sample test
```
t1tt23 45 2e30 57 3qq3
```
Output:
```
488
```
