C++ :

#include <iostream>
#include <sstream>
#include <algorithm>
#include <string>
#include <cstring>
#include <cstdio>
using namespace std;

int main(){
#ifndef ONLINE_JUDGE
	freopen("in", "r", stdin);
#endif
	int nCase = 0;
	char ch;
	while(scanf("%c ", &ch) != EOF){
		if(ch !='\n'){
			if(nCase++)
				cout <<endl;

			string str, s;
			getline(cin, str);
			istringstream ss(str);
			bool flag = true;
			while(ss >>s){
				if(s.find(ch) != s.npos){
					cout <<s <<endl;
					flag = false;
				}
			}
			if(flag){
				cout <<"No!" <<endl;
			}
		}
	}
	return 0;
}