#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (ll)(n); i++)
#define all(a) (a).begin(), (a).end()
using ll = long long;
const int INF32 = 2e9;
const ll INF64 = 4e18;

int main() {
    int N, M, ans = 0;
    cin >> N >> M;
    for (int i = 0; i < N; i++) {
        string Si;
        int Ri;
        cin >> Si >> Ri;
        for (int j = 0; j < 4; j++) {
            if (Si[j] != 'o' && Ri >= 1200) {
                ans++;
                break;
            }
        }
    }
    cout << ans << endl;
    return 0;
}