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

int main(){
	string str;
	string key_1 = "the",key_2 = "this",key_3 = "that";
	
	while(getline(cin,str))
	{
		for(int i=0;i<26;i++)
		{
			for(int j=0;j<str.size();j++)
			{
				if(str[j]!=' ' && str[j]!='.')
				{
					str[j]++;
					if(str[j] > 'z')str[j] -= 26;
				}
			}
			if(str.find(key_1)!= -1) cout << str << endl;
			else if(str.find(key_2)!= -1) cout << str << endl;
			else if(str.find(key_3)!= -1) cout << str << endl;
		}
	}
}