#include <iostream>
#include <cmath>
#include <stack>
using namespace std;

#define LEFT 1
#define UP 2
#define SIKMO 3

struct Prvek{
	int c;
	int smer;
};


int main () {
	char p1[1000][11];
	char p2[1000][11];
	char sl[11];
	Prvek pr[1001][1001];
	int c1=0, c2=0;
	cin >> sl;
	while(true) {
		while(strcmp(sl,".")) {
			strcpy(p1[++c1],sl);
			cin >> sl;
			cin.ignore();
			cout<<sl<<endl;
		}
		cin >> sl;
		while(strcmp(sl,".")) {
			strcpy(p2[++c2], sl);
			cin >> sl;
			cin.ignore();
			cout<<sl<<endl;
		}
		for (int i = 1; i <= c1; i++) {
			for (int j = 1; j <= c2; j++) {
				pr[i][j].c = max(pr[i-1][j].c,pr[i][j-1].c);
				if (strcmp(p1[i],p2[j])==0) {
					pr[i][j].c++;
					pr[i][j].smer = SIKMO;
					cout << "SIKMO\n";
				}
				else if (pr[i-1][j].c <= pr[i][j-1].c) {
					pr[i][j].smer = LEFT;
				}
				else pr[i][j].smer = UP;
			}
		}
		stack<char*> s;
		while (c1>0 && c2>0) {	
		if (pr[c1][c2].smer == LEFT) s.push(p2[c2--]);
		else if (pr[c1][c2].smer == UP) s.push(p1[c1--]);
		else {
			s.push(p2[c2--]);
			c1--;
		}
		}
		while (!s.empty()) {
			cout << s.top() << " ";
			s.pop();
		}
			cout << "." << endl;
			cin >> sl;
			if(!strcmp(sl, ".")) return 0;
	}
	return 0;
}