#include <bits/stdc++.h>

using namespace std;

int main() {
    int N, M;
    cin >> N >> M;
    int ans = 0;
    while (N--) {
        string S;
        cin >> S;
        int R;
        cin >> R;
        ans += S.substr(0, 4) != "oooo" && R >= 1200;
    }
    cout << ans << endl;
    return 0;
}