# include<iostream> # include<cstring> using namespace std; int main(){ string s1,s2,s3=""; int temp=0; cin>>s1>>s2; for(int i=0;i<s1.size();i++){ temp=(int)s1[i]; if(temp>=97) s3+=s2[temp-97]; else s3+=(char)s2[temp-65]+26; } cout<<s3<<endl; }