#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (ll i = 0; i < (n); i++)

void solve() {
    string r, s;
    ll k;
    cin >> r >> s >> k;
    if (s == "Warong") rep(i, k) r[i] = 'A';
    ll cnt = 0, cntw = 0;
    rep(i, ssize(r)) {
        if (r[i] == '?') cnt++;
        if (r[i] == 'W') cntw++;
    }
    if (s == "Warong" && cnt == 1 && cntw == 0) rep(i, ssize(r)) if (r[i] == '?') r[i] = 'W';
    cout << r << endl;
}

int main() {
    ll t;
    cin >> t;
    while (t--) solve();
    return 0;
}