#include <iostream>
    int main()
    {
        char ch;
        const char * alphabet = "abcdefghijklmnopqrstuvwxyz";
        std::cin >> ch;
        int position1 = ch - 'a';
        int position2 = (position1 + 1) % 26;
        int position3 = (position1 + 2) % 26;
        std::cout << ch << alphabet[position2] << alphabet[position3];
    }