#include <bits/stdc++.h>
using namespace std;
#define IOS ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
typedef int64_t ll; 
#define int ll
#define endl '\n'
#define FOR(i,j,n)   for(int i=j;i<n;i++)
#define print(a)     cout<<a<<" "
#define vec          vector<int>
#define pb           push_back    
#define pii          pair<int,int>
#define mp           make_pair
#define f            first
#define s            second
#define all(v)       v.begin(),v.end()
#define mem(a,b)     memset(a,b,sizeof(a))
#define inf          INT_MAX
const int mod=1e9+7;
const int N=5e5+5;

void solve()
{
    //cout<<"Jai Shree Ram";
     string s;
     string ans="";
     cin>>s;
     bool flag = true;
     for(int i=0;i<s.length();i++)
     {
         if(flag)
         {
             if(s[i] == 'a')
              ans+='b';
             else
              ans+='a'; 
         }
         else
         {
             if(s[i] == 'z')
              ans+='y';
             else
              ans+='z'; 
         }
        flag = !flag;
     }
     cout<<ans;

}

int32_t main()
{
     IOS
     int t=1;
     cin>>t;
     while(t--)
     {
         //cout<<"Case #"<<T++<<": ";
         solve(); 
         cout<<endl;
     }
     return 0;
}
