#include <cassert>
#include <iostream>
#include <string>

bool IsValid(const std::string& Text)
{
    return 
        Text.find("the")  != std::string::npos ||
        Text.find("this") != std::string::npos ||
        Text.find("that") != std::string::npos;
}
std::string RotateChar(const std::string& Code, int Key)
{
    std::string Text = Code;
    for(std::size_t i = 0; i < Text.size(); ++i){
        if(Text[i] == ','
        || Text[i] == '.'
        || Text[i] == ' '){
            continue;
        }
        int c = Text[i] + Key;
        if(c < 'a') c += 26;
        if(c > 'z') c -= 26;
        Text[i] = c;
    }
    return Text;
}
std::string Decrypt(const std::string& Code)
{
    for(int i = 0; i < 26; ++i){
        std::string Text = RotateChar(Code, i);
        if(IsValid(Text)){
            return Text;
        }
    }
    assert(false);
    return "";
}
int main()
{
    while(true){
        std::string Code;
        std::getline(std::cin, Code);
        if(std::cin.eof()) break;
        std::cout << Decrypt(Code) << std::endl;
    }
    return 0;
}