#include<bits/stdc++.h>
using namespace std;
bool v[30];
map<char,char> m0,m1;
char s1[130],s2[130],s3[130];
int main(){
	freopen("spy.in","r",stdin);
	freopen("spy.out","w",stdout);
	cin>>s1;
	cin>>s2;
	cin>>s3;
	for(int i=0;i<strlen(s1);i++){
		if((m0.count(s1[i]) && m0[s1[i]]!=s2[i])||(m1.count(s2[i]) && m1[s2[i]]!=s1[i]))
		{
            cout<<"Failed";
            return 0;
        }
        else{
        m0[s1[i]]=s2[i];
        m1[s2[i]]=s1[i];
    }
	}
    for(int i=0;i<26;i++)
    {
        if(!m1.count('A'+i))
        {
            cout<<"Failed";
            return 0;
        }
    }
    for(int i=0;i<strlen(s3);i++)
    {
        cout<<m0[s3[i]];
    }
    return 0;
}