include<bits/stdc++.h>

using namespace std; int main(){

string s1;
getline(cin,s1);
string s2;
getline(cin,s2);
for(int i=0;i<s2.size();i++)
{
	if(s2[i]>='A'&&s2[i]<='Z')
	{
		int t=s2[i]-'A';
		cout<<s1[t];
		continue;
	}
	cout<<s2[i];
}
return 0;

}