#include<bits/stdc++.h>
using namespace std;
char c;
int main(){
    while(cin>>c){
        if(c>='a'&&c<='w' || c>='A'&&c<='W') cout<<char(c+3);
        else if(c>='x'&&c<='z') cout<<char('a'+c-'x');
        else if(c>='X'&&c<='Z') cout<<char('A'+c-'X');
        else cout<<c;
    }
    return 0;
}