#include <iostream>

using namespace std;

int main()
{
    int num;
    cin >> num;
    int ones_place = num % 10;  // 个位
    int tens_place = num / 10 % 10; // 十位
    int hundreds_place = num / 10 / 10 % 10;
    cout << ones_place << tens_place << hundreds_place; // 反向输出
    return 0;
}