using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.IO;

class Myon
{
    public Myon() { }
    public static int Main()
    {
        new Myon().calc();
        return 0;
    }

    int T = 10;
    void calc()
    {
        Random r = new Random(2);
        List<int> l = new List<int>();
        while (true)
        {
            l.Add(r.Next(0, (1 << 20)));
            if (check(l)) break;
        }
        Console.WriteLine(l.Count);
        foreach (var item in l)
        {
            for (int j = 0; j < 10; j++)
            {
                Console.Write((((item >> (j * 2)) & 3) + 1) + " ");
            }
            Console.WriteLine();
        }
    }

    bool check(List<int> l)
    {
        Dictionary<ulong, bool> dic = new Dictionary<ulong, bool>();
        for (int i = 0; i < (1 << 20); i++)
        {
            ulong p = 0;
            foreach (var item in l)
            {
                int count = 0;
                for (int j = 0; j < 10; j++)
                {
                    if (((item >> (j * 2)) & 3) == ((i >> (j * 2)) & 3)) count++;
                }
                p <<= 4;
                p += (ulong)count;
            }
            if (dic.ContainsKey(p)) return false;
            dic[p] = true;
        }
        return true;
    }

}