#include <stdio.h>

int main()
{
	char a, b, c;
    int s = 0;
    scanf("%c", &a);
    if (a == '!')
    {
        printf("0");
    	return 0;
    }
    while (scanf("%c", &b))
    {
        if (a >= '0'&&a <= '9' && b >= '0' && b <= '9')
        	s += ((a - '0') * 10 + (b - '0'));
    	else if (a >= '0' && a <= '9' && (c <= '0' || c >= '9'))
        	s += (a - '0');
        c = a;
        a = b;
        if (b == '!')
            break;
    }
    printf("%d", s);
    return 0;
}