#include<bits/stdc++.h>
using namespace std;

int main(){
	map<char,char>m;
	string s1,s2,s3;
	cin>>s1>>s2;
	for(int i=0;i<s1.size();i++){
		if(m.count(s1[i])&&m[s1[i]]!=s2[i]){
			cout<<"Failed";
			return 0;
		}
		m[s1[i]]=s2[i];
	}
	if(m.size()!=26){
		cout<<"Failed";
		return 0;
	}
	cin>>s3;
	for(int i=0;i<s3.size();i++){
		cout<<m[s3[i]];
	}
	return 0;  
}