#include <vector>
    #include <string>
    #include <iostream>
 
    using std::vector;
    using std::string;
    using std::cout;
    using std::cin;
    using std::endl;
 
    int main()
    {
        string s1 = "AreYouOK";
        vector<string> v;
 
        string::const_iterator b = s1.begin();
        for (string::const_iterator iter = b;
                iter != s1.end()-1; ++iter)
        {
            string s(b,iter); 
            s += *iter;
            v.push_back(s);
        }
 
        for (vector<string>::const_iterator iter = v.begin();
                iter != v.end(); ++iter)
        {
            cout << *iter <<endl;
        }
 
        return 0;
    }

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