Roxettes

#include <stdio.h>
#include <iostream>
#include <string.h>
#include <vector>
#include <string>

using namespace std;

int main()
{

    char diff;
    char inputstring[10000];
    string s;
    vector<string> dividedString;

    cin>>inputstring;

    int lend = strlen(inputstring);
    lend--;
    int group = lend/5;
    int first = 0;
    int second = 5;



    for(int j = 0; j < group ; j++)
        {

          for(int i = first; i < second; i++)
            {
                s.push_back(inputstring[i]);
            }

        dividedString.push_back(s);
        s = "";
        first += 5;
        second += 5;

        }

    if(lend < 4)
    {

        cout<<inputstring;
   }else
    {
         for(int i = 0;i < group;i++)
        {
        int cnt = 0;
        for(int j = 0;j < group ;j++)
            {
            if(dividedString[i] == dividedString[j])
                cnt++;
            }
            if(cnt == 1)
            {//its unique..print it
            cout << dividedString[i] <<endl;
            }

        }
    }


       // for(int j = 0; j < group ; j++)
      //  {
     //   cout<<dividedString[j]<<endl;
     //   }




    return 0;
}