#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
  int a,b,c,d,e,f,g,p,k;
  scanf("%d",&a);
  p=0;
  b=a%10;
  c=(a%100-b)/ 10;
  d=(a%1000-b-c) / 100;
  e=(a%10000-b-c-d) / 1000;
  f=(a%100000-b-c-d-e) / 10000;
  g=(a%1000000-b-c-d-e-f) / 100000;
  if (a==999999) printf("000000\n");
  else if (b>c)
  {
         p=b;
         b=c;
         c=p;
         k=b+c*10+d*100+e*1000+f*10000+g*100000;
         printf("%d\n",k);
  }
  else if ( ( ( ( (e+f+g)-(d+1) ) < 10) && (d+1) != 10 ))
  {
       d++;
       c=0;
       b=(e+f+g)-d;
       k=b+c*10+d*100+e*1000+f*10000+g*100000;
       printf("%d\n",k);
  }
  else if ((d+1) == 10)
  {
       if ((e+1)< 10)
       {
                 e++;
                 b=9;
                 d=(e+f+g)-b-c;
                 k=b+c*10+d*100+e*1000+f*10000+g*100000;
                 printf("%d\n",k);
       }
        else
        {
            f++;
            e=e-1;
            b=9;
            c=9;
            d=(e+f+g)-b-c;
            k=b+c*10+d*100+e*1000+f*10000+g*100000;
            printf("%d\n",k);
        }
  }
  else if ( ( ( ( (e+f+g)-(d+1) ) > 10) && (d+1) != 10 ))
  {
       d++;
       b=9;
       c=(e+f+g)-d-b;
       k=b+c*10+d*100+e*1000+f*10000+g*100000;
       printf("%d\n",k);
  }
  system("PAUSE");
  return 0;
}