#include<stdio.h>
int main()
{
    long long n;
    scanf("%lld",&n);
    
    long long result = 0 , place =1;
    
    if(n== 0) {
      printf("1");
      return 0;
    }
       while(n !=0) {
           int digit =n %10;
           
           if(digit == 0);
           digit = 1;
           
           result = result + digit + place;
           place*=10;
           n/=10;
       }
       printf("%lld",result)
}