#include<iostream>
#include<algorithm>
#include<string> 
using namespace std;
int n,m,cnt;
string s[100006];
char k;
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>s[i];
	}
	cin>>k;
	sort(s+1,s+n+1);
	for(int i=1;i<=n;i++){
		if(s[i].find(k)==0) cout<<s[i]<<"\n";
	} 
	return 0;
}

P1628
WA40