#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: Compile Error
****************************************************************/