using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        int N, M;
        {
            int[] vs = Console.ReadLine().Split().Select(_ => int.Parse(_)).ToArray();
            N = vs[0];
            M = vs[1];
        }

        int ans = 0;
        for (int i = 0; i < N; i++)
        {
            string[] vs = Console.ReadLine().Split();
            string s = vs[0];
            int r = int.Parse(vs[1]);
            if (r >= 1200 && s.Substring(0, 4) != "oooo")
                ans++;
        }
        Console.WriteLine(ans);
    }
}