#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;
	return 0;
}

/**************************************************************
	Problem: 1133
	User: chenyaohuo
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/