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[] LList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => int.Parse(ReadLine())).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var a = LList(6);
        var tree = new List<int>[1000000];
        for (var i = 0; i < tree.Length; ++i) tree[i] = new List<int>();
        for (var i = 0; i < 6; ++i)
        {
            for (var j = 0; j < tree.Length; ++j)
            {
                tree[j].Add(Add(a[i], j));
            }
        }
        var visited = new bool[tree.Length];
        visited[a[0]] = true;
        var q = new Queue<int>();
        q.Enqueue(a[0]);
        while (q.Count > 0)
        {
            var cur = q.Dequeue();
            foreach (var next in tree[cur])
            {
                if (visited[next]) continue;
                visited[next] = true;
                q.Enqueue(next);
            }
        }
        WriteLine(visited.Count(f => f));
    }
    static int Add(int a, int b)
    {
        return (a / 100000 + b / 100000) % 10 * 100000
            + (a / 10000 % 10 + b / 10000 % 10) % 10 * 10000
            + (a / 1000 % 10 + b / 1000 % 10) % 10 * 1000
            + (a / 100 % 10 + b / 100 % 10) % 10 * 100
            + (a / 10 % 10 + b / 10 % 10) % 10 * 10
            + (a % 10 + b % 10) % 10;
    }
}