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

int main()
{
    int t; cin >> t;
    while (t--){
        //int n; cin >> n;
        string s; cin >> s;
        string res = "";
        for (int i=0;i<s.size();i++){
            if (i%2==0){
                if (s[i]=='a'){
                    res += "b";
                } else {
                    res += "a";
                }
            } else {
                if (s[i]=='z'){
                    res += "y";
                } else {
                    res += "z";
                }
            }


        }
        cout << res << endl;




    }
}
