#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
#include<set>
using namespace std;

int main()
{
    string s;
    while(getline(cin,s))
    {
        if(s=="ENDOFINPUT") break;
        if(s!="START" && s!="END")
        {
            for(int i=0;i<s.size();i++)
            {
                if(isalpha(s[i]))
                {
                    s[i] = (s[i]-'A'-5+26)%26+'A';
                }
            }
            cout<<s<<endl;
        }
    }
}