#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ string s,ex; int i; cin>>s>>ex; for(i=0;i<s.size();i++){ if('A'<=s[i]&&s[i]<='Z'){ s[i]=ex[s[i]-'A']-32; } else if('a'<=s[i]&&s[i]<='z'){ s[i]=ex[s[i]-'a']; } } cout<<s; return 0; }