#include<bits/stdc++.h>
using namespace std ;
int main() {
    int t ;
    cin >> t ;
    while( t-- ) {
        string s ;
        cin >> s ;
        for( int i = 0 ; i < s.size() ; i++ ) {
            if( i % 2 == 0 ) {
                if( s[i] == 'a' )
                    s[i] = 'b' ;
                else
                    s[i] = 'a' ;
            }
            else {
                if( s[i] == 'z' )
                    s[i] = 'y' ;
                else
                    s[i] = 'z' ;
            }
        }
        cout << s << endl ;
    }

    return 0 ;
}