#include <iostream>

using namespace std;

#define sz(a) (int)a.size()

int main() {
    /*int x=10;
    int y=25;
    int z=x+y;

    cout<<"Sum of x+y = " << z;*/
    
    int t;
    cin >> t;
    
    for(int i = 0; i<t; i++){
        string s;
        cin >> s;
        
        for(int j=0; j<sz(s); j++){
            if(s[j]!='a' && j%2==0){
                s[j] = 'a';
            }
            else if(s[j]=='a' && j%2==0){
                s[j] = 'b';
            }
            else if(s[j]!='z' && j%2==1){
                s[j] = 'z';
            }
            else if(s[j]=='z' && j%2==1){
                s[j] = 'y';
            }
        }
        cout << s << endl;
    }
    
}