# Mixed sequence

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

A sequence of characters separated by spaces is given. Each character of the sequence is a capital or small letter of the Latin alphabet, or a digit from 0 to 9.

Find the sum of the numbers in this sequence. The number of characters included in the sequence is no more than 10000.

## Input

Sequence of characters separated by spaces.

## Output

Print the sum of the digits in the sequence, or 0 if there are no digits in the sequence.

## Examples

Input #1

Answer #1

Input #2

Answer #2

Submissions 1K

Acceptance rate 49%