#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
	cin>>s;
	for(int i=0;i<s.size();i++){
		if(s[i]>='A'&&s[i]<='Z'){
			s[i]='Z'-(s[i]-'A');
		}else if(s[i]>='A'&&s[i]<='Z'){
			s[i]='z'-(s[i]-'a');
	}
		cout<<s;
} 
}
/**************************************************************
	Problem: 1133
	User: linweilun
	Language: C++
	Result: Wrong Answer
****************************************************************/