#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];
}
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