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#include<iostream>
#include<string>
#include<cctype>
#include<vector>
#include<map>
#include<algorithm>
using namespace std;
map<string,int> cnt;
vector<string> words;
string repr(const string& s){
string ans=s;
for(int i=0;i<ans.length();i++){
ans[i]=tolower(ans[i]);
sort(ans.begin(),ans.end());
return ans;
}
}
int main(){
int n=0;
string s;
while(cin>>s){
if(s[0]=='#') break;
words.push_back(s);
string r=repr(s);
if(!cnt.count(r)) cnt[r]=0;
cnt[r]++;
}
vector<string> ans;
for(int i=0;i<words.size();i++)
if(cnt[repr(words[i])]==1) ans.push_back(words[i]);
sort(ans.begin(),ans.end());
for(int i=0;i<ans.size();i++)
cout<<ans[i]<<"\n";
return 0;
}