#include <iostream>
#include <string>
using namespace std;

int main()
{
    string s;
    while(getline(cin,s))
	{
        for(int i=0;i<26;++i)
		{
            for(int j=0;j<s.size();++j) 
				if('a'<=s[j]&&s[j]<='z')
					{
						s[j]=((s[j]-'a'+1)%26+'a');
				}
            if(s.find("the")!=-1||s.find("this")!=-1||s.find("that")!=-1)
break;
        }
        cout<<s<<endl;
    }
    return 0;
}