#include <stdio.h>

int main(void) {
    int c, num1, num2, sum;
    num1 = 0;
    num2 = 0;
    sum = 0;
    while ((c = fgetc(stdin)) != EOF) {
        if (c >= '0' && c <= '9') {
            num1 = num1 == 0 ? c - '0' : num1;
            num2 = c - '0';
        } else if (c == '\n') {
            sum += num1*10 + num2;
            num1 = 0;
        }
    }
    printf("%d\n", sum);
    return 0;
}