#include<bits/stdc++.h> using namespace std; int main() { string s; cin>>s; for(int i=0; i<s.size(); i++) { if(s[i]=='x') { s[i]=='a'; }else if(s[i]=='y') { s[i]=='b'; }else if(s[i]=='z') { s[i]=='c'; }else{ s[i]=s[i]+3; } if(s[i]>='A'&&s[i]<='Z'){ s[i]+=32; continue; } if(s[i]>='a'&&s[i]<='z'){ s[i]-=32; continue; } } for(int i=s.size()-1;i>=0;i--){ cout<<s[i]; } return 0; }