#include <iostream>
#include <string>
#include <algorithm>
int main()
{
std::string str;
std::getline(std::cin, str);
std::string str_reversed;
std::reverse_copy(std::begin(str), std::end(str), std::back_inserter(str_reversed));
std::cout << str_reversed << std::endl;
return 0;
}
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