#include <bits/stdc++.h>
using namespace std;
const string str = "abacaba";

bool can_replace(string s) {
    for (int i = 0; i < str.size(); ++i) 
        if (s[i] != str[i] and s[i] != ‘?‘)
            return false;
    return true;
}

int count_str(string s) {
    int res = 0;
    for (int i = 0; i + str.size() - 1 < s.size(); ++i)
        if (s.substr(i, str.size()) == str)
            ++res;
    return res;
}

void solve() {
    int n; string s; cin >> n >> s;
    int cnt = count_str(s);
    if (cnt > 1) {
        cout << "No" << "\n";
    } else if (cnt == 1) {
        cas:;
        for (char &c : s)
            if (c == ‘?‘) c = ‘z‘;
        cout << "Yes" << "\n" << s << "\n";
    } else {
        for (int i = 0; i + str.size() - 1 < s.size(); ++i) {
            string t = s.substr(i, str.size());
            if (can_replace(t)) {
                s.replace(i, str.size(), str);
                if (count_str(s) == 1) goto cas;
                s.replace(i, str.size(), t);
            }
        }
        cout << "No" << "\n";
    }    
}

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