using System;

namespace No._43
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            string data;
            string[,] table = new string[n, n];
            int[] win = new int[n];
            int[] rank = new int[n];

            for (int i = 0; i < n; i++)
            {
                data = Console.ReadLine();
                for (int j = 0; j < n; j++)
                {
                    table[i, j] = data[j].ToString();
                }
            }

            for (int i = 0; i < n; i++)
                for (int j = 0; j < n; j++)
                    if (table[i, j] == "o" || (i == 0 && table[i, j] == "-"))
                        win[i]++;

            for (int i = 0; i < n; i++)
                for (int j = 0; j < n; j++)
                    if (win[i] < win[j])
                        rank[i]++;

            Console.WriteLine(rank[0] + 1);
        }
    }
}