int main()
{
   int k,a,b,c,d,e,f;
   scanf("%d",&k);
   k<100000;
   if(k/10000 != 0)
   a=k/10000;
   b=k/1000-10*a;
   c=k/100-100*a-10*b;
   d=k/10-1000*a-100*b-10*c;
   e=k/1-a*10000-b*1000-c*100-d*10;
   f=e*10000+d*1000+c*100+b*10+a*1;
   if(k/10000==0)
{
   if(k/1000!=0)
   a=k/1000;
   b=k/100-a*10;
   c=k/10-a*100-b*10;
   d=k/1-a*1000-b*100-c*10;
   f=d*1000+c*100+b*10+a*1;
   if(k/1000==0)
{ 
   if(k/100!=0)
   a=k/100;
   b=k/10-10*a;
   c=k/1-a*100-b*10;
   f=c*100+b*10+a*1;

   if(k/100==0)
{
   if(k/10!=0)
   a=k/10;
   b=k/1-a*10;
   f=b*10+a*1;
   if(k/10==0)
{
   if(k/1!=0)
   f=k;
}
}
}
}
   printf("%d",f);
   return 0;
}

