#include<bits/stdc++.h>
using namespace std;
int n,m,sum;
string s;
int main(){
	getline(cin,s);
	int l=s.length();
	for(int i=l-1;i>=0;i--){
		if(s[i]>='A'&&s[i]<='Z')
			s[i]+=32;
		else if(s[i]>='a'&&s[i]<='z'){
			s[i]-=32;
		}
		if((s[i]>='a' && s[i]<'x' )||( s[i]>='A' && s[i]<'X')){
			s[i]+=3;
		}
		else if(s[i]=='x'||s[i]=='X'){
			s[i]-=23;
		}
		else if(s[i]=='y'||s[i]=='Y'){
			s[i]-=24;
		}
		else if(s[i]=='z'||s[i]=='Z'){
			s[i]-=25;
		}
		cout<<s[i];
	}
	
	return 0;
}