#include <iostream>
#include <string>

using namespace std;
#define yesif(x) cout << ((x) ? "Yes": "No") << endl 

bool is_valid(string& s) {
    for (int i = 0; i < s.size(); i++) {
        if (s[i%s.size()] == s[(i + 1)%s.size()] && s[i] == s[(i + 2)%s.size()]) {
            return false;
        }
    }
    return true;
}

bool try_all_combinations(string& s, int index) {
    if (index == s.size()) {
        return is_valid(s);
    }
    if (s[index] == '?') {
        s[index] = '0';
        if (try_all_combinations(s, index + 1)) {
            return true;
        }
        s[index] = '1';
        if (try_all_combinations(s, index + 1)) {
            return true;
        }
        s[index] = '?';
    } else {
        return try_all_combinations(s, index + 1);
    }
    return false;
}




int main() {
    int t; cin>>t;
    while(t--){
        int n; cin >> n;
        string s; cin>> s;
        yesif(try_all_combinations(s,0));
    }
    return 0;
}