---

#include<stdio.h>
#include<stdlib.h>
int main()
{
    int a,b,c,d,e,f;
    char s[9999];
    while(gets(s)!=0){
    a=0;c=0;
    while(s[a]!='\0'){
          b=s[a]-48;
          d=0;
          f=1;
          while(s[a]!=' ' && s[a]!='\0'){           
           d=(d*10+b)*f;         
           a++;         
           b=s[a]-48;
           if(b>9 || b<1)
           f=0;         
                     }
          c=c+d;
         a++;
                      }
                      printf("%d\n",c);
       }
       return 0;
}