using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var ans = 0;
        for (var i = 0; i < n; ++i)
        {
            var s = ReadLine().Split();
            var pt = 0;
            foreach (var si in s)
            {
                if (si == "akai") pt += 1;
                else if (si == "marui") pt += 2;
                else if (si == "okii") pt += 4;
                else if (si == "umai") pt += 8;
            }
            if (pt == 15) ++ans;
        }
        WriteLine(ans);
    }
}