#include<iostream>

#include<cstdio>

#include<cstring>

#include<vector>

#include<algorithm>

#include<string>

using namespace std;

vector<string> strs;

int main()

{

    int sum=;

    string str("aaabbbbccccc");

    do

    {

        vector<string>::iterator it;

        for(it=strs.begin();it!=strs.end();it++)

        {

            if((*it).find(str,)!=string::npos)   //string的find函数

                break;

        }

        if(it!=strs.end())

            continue;

        sum++;

        string newstr=str+str;  //转动

        strs.push_back(newstr);

        reverse(newstr.begin(),newstr.end());   //翻动

        strs.push_back(newstr);

    }while(next_permutation(str.begin(),str.end()));   //next_permutation函数

    cout<<sum<<endl;

    return ;

}