#include<iostream> using namespace std; int main(){ string s,s1; cin>>s>>s1; int lens=s.size(); for(int i=0;i<lens;i++){ if(s[i]<='Z') s[i]=s1[(s[i]-'A')]-32; else s[i]=s1[(s[i]-'a')]; } cout<<s; return 0; }