#include <bits/stdc++.h>
using namespace std;

string change(string s)
{
	string ss = "";
	for(int i = 0; i < s.length(); i++){
		if(isalpha(s[i])){
			if(s[i] >= 'a' && s[i] <= 'd')
				ss += 'z' - (s[i] - 'a');
			else
				ss += s[i] - 4;
		}
		else
			ss += s[i];
	}
	return ss;
}

int main(void)
{
	string s;

	while(getline(cin, s)){
		cout << change(s) << endl;
	}

	return 0;
}