#include<iostream>
#include<string>

using namespace std;

int main(){

string s;
string alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
    
cin >> s;

for(int i=0; s[i]!='\0'; i++){
    for(int j=0; j<52; j++){
        if(s[i]==alphabet[j]){
            if(j<=25) cout << alphabet[j + 26];
            else cout << alphabet[j - 26];
        }
    }    
}
cout << endl;
    
}