using System.Numerics;

public class Program
{
    public static void Main()
    {

        int num = int.Parse(Console.ReadLine() ?? string.Empty);
        //string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        //string str = Console.ReadLine() ?? string.Empty;

        int count = 0;
        for (int i = 0; i < num; i++)
        {
            string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
            bool akai = str.Contains("akai");
            bool marui = str.Contains("marui");
            bool okii = str.Contains("okii");
            bool umai = str.Contains("umai");

            if(akai && marui && okii && umai)
            {
                count++;
            }

        }
        Console.WriteLine(count);

    }

}