// C++ program to demonstrate next lexicographically

// greater permutation of a word

#include <algorithm>

#include <iostream>

using namespace std;

int main()

{

    string s = { "gfg" };

    bool val

        = next_permutation(s.begin(),

                        s.end());

    if (val == false)

        cout << "No Word Possible"

            << endl;

    else

        cout << s << endl;

    return 0;

}