using System;

namespace Task4
{
    class Program
    {
        private static bool dfs(int i, int j, int[,] g)
        {
            if (i < 0 || i >= g.GetLength(0) || j < 0 || j >= g.GetLength(0) || g[i, j] == 0)
                return false;
            g[i, j] = 0;
            dfs(i - 1, j, g);
            dfs(i + 1, j, g);
            dfs(i, j - 1, g);
            dfs(i, j + 1, g);
            return true;
        }
        private static int numIslands(int[,] grid)
        {
            int[,] g = grid;
            int n = grid.GetLength(0);
            if (n == 0)
                return 0;
            int m = grid.GetLength(1);
            if (m == 0)
                return 0;
            int count = 0;
            for (int i = 0; i < n; ++i)
                for (int j = 0; j < m; ++j)
                    if (dfs(i, j, g))
                        ++count;
            return count;
        }

        static void Main(string[] args)
        {
            string input = Console.In.ReadToEnd();
            string[] strings = input.Split('\n');
            char[] MyChar = { '\r', ']', '[', ' ' };
            int n = strings.Length - 3;
            int m = strings[1].Split(',').Length - 1;
            int[,] matrix = new int[n, m];
            for (int i = 1; i < strings.Length - 2; ++i)
            {
                string[] str = strings[i].Split(',');
                str[0] = str[0].TrimStart(MyChar);
                str[str.Length - 2] = str[str.Length - 2].TrimEnd(MyChar);
                for (int j = 0; j < str.Length - 1; ++j)
                    matrix[i - 1, j] = int.Parse(str[j]);
            }
            Console.WriteLine(numIslands(matrix));
            //for (int i = 0; i < n; i++)
            //{
            //    for (int j = 0; j < m; j++)
            //        Console.Write($"{matrix[i, j]} ");
            //    Console.WriteLine();
            //}
        }
    }
}