#include <bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
list <string> li;
int n; cin>>n;
string s;
while(n--){
cin>>s;
if(li.empty()){
li.push_back(s);
}
else{
bool f=0;
auto it=li.begin();
for( ; it!=li.end(); it++){
if(*it==s){
f=1;
break;
}
}
if(f==1){
li.erase(it);
li.push_back(s);
}
else li.push_back(s);
}
}
auto it2=li.end();
it2--;
auto it3=li.begin();
it3--;
for( ; it2!=it3; it2--) cout<<*it2<<"\n";
return 0;
}
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