#include<bits/stdc++.h>
using namespace std;
using ll=long long;
int main()
{
    cin.tie(0)->sync_with_stdio(0);
    ll t;cin>>t;
    while(t--)
    {
        string r,s;
        ll k;
        cin>>r>>s>>k;
        if(s=="NotWarong")
        {
            cout<<r<<"\n";
            continue;
        }
        bool can=false,flag=true;
        for(int i=0;i<(int)r.size();i++)if(r[i]=='W')can=true;
        for(int i=0;i<(int)r.size();i++)
        {
            if(r[i]=='W')flag=false;
            if(flag&&k)r[i]='A',k--;
            else if(!can&&r[i]=='?')r[i]='W',can=true;
        }
        cout<<r<<"\n";
    }
}