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

/**************************************************************
	Problem: 1133
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/