#include<iostream>
#include<cstdio>
#include<map>
#include<cstring>
using namespace std;
map<char,char> exist,mapped;
char locked[1000],key[1000],message[1000];
int mapn=0;

int size(char* t){
	int s=0;
	for(int i=0;i<=999;i++){
		if(t[i]>'Z'||t[i]<'A') break;
		s++;
	}
	return s;
}

int main(){
	freopen("spy.in","r",stdin);
	freopen("spy.out","w",stdout);
	scanf("%s",locked);
	scanf("%s",key);
	scanf("%s",message);
	char nil=exist['q'];
	int sol=size(locked),sok=size(key),som=size(message);
	for(int i=0;i<sol;i++){
		if(exist[locked[i]]==nil){
			if(mapped[key[i]]==locked[i]||mapped[key[i]]==nil){
				exist[locked[i]]=key[i];
				mapped[key[i]]=locked[i];
				mapn++;
			}else{
				printf("Failed\n");
				return 0;
			}

		}else if(exist[locked[i]]!=key[i]){
			printf("Failed\n");
			return 0;
		}
	}
	if(mapn!=26){
		printf("Failed\n");
		return 0;
	}
	for(int i=0;i<som;i++){
		printf("%c",exist[message[i]]);
	}
	fclose(stdin);
	fclose(stdout);
	return 0;
}