#include<iostream>
#include<vector>
#include<string>

std::string Caesar(std::string str, int tranceNum )
{
	for(size_t i=0; i<str.length(); ++i)
	{
		if(str[i]!='.')
		{
			int chNum = 0;
	
			chNum = str[i];

			chNum += tranceNum;

			chNum = (chNum-97)%26+97;
	
			str[i] = chNum;	
		
		}
	}

	return str;
}

int main(void)
{
	std::string str;
	
	std::vector<std::string> sentence;

	while(1)
	{	
		while(std::cin >> str)
		{
			sentence.push_back(str);
				
			if(sentence[sentence.size()-1][sentence[sentence.size()-1].length()-1]=='.')
			{
				break;
			}
		}

		if(std::cin.eof())
		{
			break;
		}

		for(bool flg=1; flg; )
		{
			for(size_t j=0; j<sentence.size(); ++j)
			{
			sentence[j] = Caesar(sentence[j],1);	
			}
	
			for(size_t j=0; (j<sentence.size()) && flg; ++j)
			{
				switch(sentence[j].length())
				{
				case 3:
					flg = (sentence[j]=="the") ? 0 : 1;
					break;
				case 4:
					flg = (sentence[j]=="that" || sentence[j]=="this") ? 0 : 1;
					break;
				case 5:
					flg = (sentence[j]=="that." || sentence[j]=="this.") ? 0 : 1;
					break;
				default:
					break;
				}
			}
		}
		for(size_t j=0; j<sentence.size(); ++j)
		{
			std::cout << sentence[j] << ' ';
		}
		std::cout << '\n';
	
		sentence.clear();
		}
}