//KY171 字符串的反码
#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std;
string s;
int main()
{
    cin>>s;
    for(int i=0;i<s.size();i++){
        if(s[i]>='a'&&s[i]<='z'){
            s[i]=26-(s[i]-'a')-1+'a';
        }
        else if(s[i]>='A'&&s[i]<='Z'){
            s[i]=26-(s[i]-'A')-1+'A';
        }
    }
    cout<<s<<"\n";
    return 0;
}