#include <bits/stdc++.h>

using namespace std;

const int N = 5e3 + 5;

int l[N], r[N], n;
string s;

void process(){
    cin >> n;
    cin >> s;
    for (int i = 0; i < n; ++ i)
        l[i] = n, r[i] = -1;

    bool ok;
    for (int i = n - 1; i >= 0; i --){
        for (int j = i; j < n; ++ j){
            ok = 0;
            if (i == j) ok = 1;
            else if (l[i] <= j || r[j] >= i) ok = 1;
            if (ok == 0){
                if (j < n - 1 && s[j + 1] == 'L') l[i] = min(l[i], j + 1);
                if (i && s[i - 1] == 'R') r[j] = max(r[j], i - 1);
            }
        }
    }

    if (ok) cout << "Alice" << endl;
    else cout << "Bob" << endl;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int t; cin >> t; while (t --)
    process();
    return 0;
}