#include <bits/stdc++.h>
using namespace std;
#define int              long long int
#define double           long double
#define print(a)         for(auto x : a) cout << x << " "; cout << endl


const int M = 1000000007;
const int N = 3e5+9;
const int INF = 2e9+1;
const int LINF = 2000000000000000001;

inline int power(int a, int b, int mod=M) {
    int x = 1;
    a %= mod;
    while (b) {
        if (b & 1) x = (x * a) % mod; 
        a = (a * a) % mod;
        b >>= 1;
    }
    return x;
}


//_ ***************************** START Below *******************************





int consistency(int n, string s){
	reverse(begin(s), end(s));
	
	unordered_set<string> st;
	vector<string> state;
	
	while(!s.empty()){
		st.insert(s);
		s.pop_back();
	}
	
	for(auto& t : st){
		state.push_back(t);
	}
	
	for(auto& t : state){
		reverse(begin(t), end(t));
		
		string temp = t.substr(0, 1);
		if(t.size() == 3) temp += t.substr(2);
		reverse(begin(temp), end(temp));
		
		st.insert(temp);
	}
	
	int sz = st.size();
	
	return sz;
}















int practice(int n){


    return 0;
}





void solve() {
    
    int n;
    cin>> n;
    
    string s;
	cin >> s;    
    cout << consistency(n, s) << endl;


}





int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int t = 1;
    cin >> t;
    while (t--) {
        solve();
    }

    return 0;
}