#include<bits/stdc++.h>
typedef long long int ll;
using namespace std;
int main(){
    int t;
    cin>>t;
    while(t--){

        // code goes here
        string s;
        cin>>s;
        string :: iterator it;
        it = s.begin();
        int count = 0;
        
        while(it != s.end()){
            if(count%2 == 0){
                if(*it == 'a') *it = 'b';
                else *it = 'a'; 
            }
            else{
                if(*it == 'z') *it = 'y';
                else *it = 'z';
            }
            count++;
            it++;
        }
        cout<<s<<endl;
    }
    return 0;
}