#include <bits/stdc++.h>

using namespace std;

#define int long long

void solve() {
    int n, m;
    std::string s;
    std::cin >> n >> m >> s;
    s = ' ' + s + s;
    std::vector<int> dp(n * 2 + 1);
    for (int i = 1; i + 6 <= n * 2; i++) {
        if (s.substr(i, 7) == "nanjing") {
            dp[i] = 1;
        }
    }

    int ans = 0;
    for (int i = 1; i <= n + std::min(0ll, m - 6ll); i++) {
        ans += dp[i];
    }
    std::cout << ans << '\n';
}

signed main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    int t = 1;
    std::cin >> t;

    while (t --) {
        solve();
    }
}