#include <iostream>
#include <string>
using namespace std;
int main()
{
string wyraz;
while(getline(cin,wyraz,'\n'))
{
if(wyraz.size()<1000)
{
for(int i=wyraz.size()-1; i>=0; i--)
cout<<wyraz[i];
}
cout<<endl;
}
return 0;
}
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