#include<iostream>

#include<vector>

#include<string>

#include<algorithm>

#include<cctype>

#include<map>

using namespace std;

map<string,int> cnt;

vector<string> words;

//对单词进行"标准化"

string repr(const string& s)

{

    string cs=s;

    for(int i=;i<cs.length();i++)

    {

        cs[i]=tolower(cs[i]);

    }

    sort(cs.begin(),cs.end());

    return cs;

}

int main()

{

    string s;

    while(cin>>s)

    {

        if(s[]=='#')    break;

        words.push_back(s);

        string cs=repr(s);

        if(!cnt.count(cs))    cnt[cs]=;

        cnt[cs]++;

    }

    vector<string> ans;

    for(int i=;i<words.size();i++)

    {

        if(cnt[repr(words[i])]==)    ans.push_back(words[i]);//若想不到"标准化",则发挥不到map的效果

    }

    sort(ans.begin(),ans.end());

    for(int i=;i<ans.size();i++)

    {

        cout<<ans[i]<<endl;

    }

    return ;

}