1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
/*
    Jakub Żojdzik
    12-12-2022
*/

#include <bits/stdc++.h>
#ifdef LOCAL
#include "debug.hpp"
#else
#define debug(...)
#define dt
#endif
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef vector<int> vi;
typedef vector<long long> vll;
typedef vector<pair<int, int>> vpii;
typedef vector<pair<long long, long long>> vpll;

#define fi first
#define se second
#define pb push_back
#define rep(i, x, y) for(ll i = (ll)x; i <= (ll)y; i++)
#define all(x) x.begin(), x.end()
#define sz(x) (ll)(x).size()
#define nl cout << '\n'

bitset<200> tab;

int main()
{
    cout.tie(0);
    cin.tie(0)->sync_with_stdio(0);

    int n;
    char tmp;
    cin >> n;
    rep(i, 0, n-1)
    {
        cin >> tmp;
        if(tmp == 'T') tab[i] = 1;
        else tab[i] = 0;
    }

    ll res = 0;
    for(int i = 0; i < 10; i++)
    {
        bool ok = 1;
        for(int j = 0; j < n/10; j++)
        {
            ok = (ok && tab[i*(n/10) + j]);
        }
        if(ok) res++;
    }

    cout << res << '\n';
}

/*
20
TTNNTTNTNTNNNNNNNNTT
*/