#include <iostream>
#include <string>

int main() {
    std::string last_three;
    std::cin >> last_three;
    std::string first_three = "";
    for (int i = last_three.length() - 1; i >= 0; i--) {
        first_three += last_three[i];
    }
    std::string six_digit_str = first_three + last_three;
    int six_digit = std::stoi(six_digit_str);
    std::cout << six_digit << std::endl;
    return 0;
}    
/**************************************************************
	Problem: 1620
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/