#include<bits/stdc++.h>
//#define sort(a) sort(a.begin(),a.end())
#define vpi vector< pair<long long,long long> >
//#define pb push_back
#define ll long long
#define fast1 ios_base::sync_with_stdio(false)
#define fast2 cin.tie(NULL)
#define REP(i,n) for(int i=0; i<n; i++)

using namespace std;

int main() {
    fast1; fast2;
    ll t; cin>>t;

    while(t--) {
        string s; cin>>s;

    for(ll i=0; i<s.size(); i++) {
        if(i%2 == 0) {
            if(s[i]=='a') {
                cout<<'b';
            } else cout<<'a';
        } else {
            if(s[i]=='z') {
                cout<<'y';
            } else cout<<'z';
        }
    }
    cout<<'\n';
    }
}
