using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ProgrammingContest
{
    class Writer : IDisposable
    {
        private System.IO.TextWriter Out { get; }
        private StringBuilder Sb { get; }
        private bool IsReactive { get; }
        public Writer(string path)
            : this(new System.IO.StreamWriter(path))
        {
        }
        public Writer(bool isReactive)
            : this(null, isReactive)
        {
        }
        public Writer(System.IO.TextWriter writer = null, bool isReactive = false)
        {
            this.Out = (writer ?? Console.Out);
            this.IsReactive = isReactive;
            if (!this.IsReactive)
            {
                this.Sb = new StringBuilder();
            }
        }
        public void Dispose()
        {
            if (!this.IsReactive)
            {
                this.Out.Write(Sb.ToString());
            }
            if (!this.Out.Equals(Console.Out))
            {
                this.Out.Dispose();
            }
        }
        public void Write(object val)
        {
            if (this.IsReactive)
            {
                this.Out.Write(val.ToString());
                this.Out.Flush();
            }
            else
            {
                this.Sb.Append(val.ToString());
            }
        }
        public void WriteFormat(string format, params object[] vals)
        {
            if (this.IsReactive)
            {
                this.Out.Write(format, vals);
                this.Out.Flush();
            }
            else
            {
                this.Sb.AppendFormat(format, vals);
            }
        }
        public void WriteLine(object val = null)
        {
            this.WriteFormat((val ?? string.Empty).ToString() + Environment.NewLine);
        }
        public void WriteLine(int val)
        {
            this.WriteLine(val.ToString());
        }
        public void WriteLine(long val)
        {
            this.WriteLine(val.ToString());
        }
        public void WriteLine(string val)
        {
            this.WriteLine((object)val);
        }
        public void WriteLine(string format, params object[] vals)
        {
            this.WriteFormat(format + Environment.NewLine, vals);
        }
    }

    class Scanner : IDisposable
    {
        private Queue<string> Buffer { get; }
        private char[] Sep { get; }
        private System.IO.TextReader Reader { get; }
        public Scanner(string path, char[] sep = null)
            : this(new System.IO.StreamReader(path), sep)
        {
        }
        public Scanner(System.IO.TextReader reader = null,
                        char[] sep = null)
        {
            this.Buffer = new Queue<string>();
            this.Sep = (sep ?? new char[] { ' ' });
            this.Reader = (reader ?? Console.In);
        }
        private void CheckBuffer()
        {
            if (this.Buffer.Count == 0 && this.Reader.Peek() != -1)
            {
                string str = string.Empty;
                for (; string.IsNullOrEmpty(str) || string.IsNullOrWhiteSpace(str);
                    str = this.Reader.ReadLine()) ;

                var strs = str.Split(this.Sep).Where(el => !(string.IsNullOrEmpty(el) || string.IsNullOrWhiteSpace(el)));
                foreach (var el in strs)
                {
                    this.Buffer.Enqueue(el);
                }
            }
        }

        public void Dispose()
        {
            if (!this.Reader.Equals(Console.In))
            {
                this.Reader.Dispose();
            }
        }

        public string Next()
        {
            this.CheckBuffer();
                return this.Buffer.Dequeue();
        }
        public string[] GetStringArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.Next())
                             .ToArray();
        }

        public int NextInt()
        {
            return int.Parse(this.Next());
        }
        public int[] GetIntArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.NextInt())
                             .ToArray();
        }

        public double NextDouble()
        {
            return double.Parse(this.Next());
    }
        public double[] GetdoubleArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.NextDouble())
                             .ToArray();
        }

        public long NextLong()
        {
            return long.Parse(this.Next());
        }
        public long[] GetLongArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.NextLong())
                             .ToArray();
        }

        public bool IsEnd
        {
            get
            {
                this.CheckBuffer();
                return this.Buffer.Count == 0;
            }
        }
    }

    class MainClass : IDisposable
    {
        private Scanner Sc { get; }
        private Writer Wr { get; }
        static string BackPath { get; } = "..";
        private char DirSep { get; } = System.IO.Path.DirectorySeparatorChar;
        private string InFilePath { get; } = string.Empty;
        private string OutFilePath { get; } = string.Empty;
        public MainClass()
        {
            this.InFilePath = MainClass.BackPath
                            + this.DirSep
                            + MainClass.BackPath
                            + this.DirSep
                            + "in.txt";
            this.OutFilePath = MainClass.BackPath
                             + this.DirSep
                             + MainClass.BackPath
                             + this.DirSep
                             + "out.txt";

            this.Wr = new Writer(this.IsReactive);
            //this.wr = new Writer(this.OutFilePath);
#if DEBUG
            if (!this.IsReactive)
            {
                this.Sc = new Scanner(this.InFilePath);
            }
            else
            {
                this.Sc = new Scanner();
            }
#else
            this.Sc = new Scanner();
#endif
        }
        static void Main(string[] args)
        {
            using (var mainClass = new MainClass())
            {
                mainClass.Solve();
            }
        }

        public void Dispose()
        {
            this.Sc?.Dispose();
            this.Wr?.Dispose();
#if DEBUG
            Console.WriteLine("press any key to continue...");
            Console.ReadKey();
#endif
        }

        long Gcd(long a, long b)
        {
            if (a < b)
            {
                var tmp = b;
                b = a;
                a = tmp;
            }
            var ret = 1L;
            while (b != 0)
            {
                ret = b;
                b = a % b;
                a = ret;
            }
            return ret;
        }

        void Solve()
        {
            int H = Sc.NextInt();
            int W = Sc.NextInt();
            int[,] a = new int[H, W];
            for (int i = 0; i < H; i++)
            {
                for (int j = 0; j < W; j++)
                {
                    a[i, j] = Sc.NextInt() % 2;
                }
            }
            List<string> ans = new List<string>();
            Pair<int, int> p = new Pair<int, int>(-1, -1);
            for (int i = 0; i < H; i++)
            {
                if (i % 2 == 0)
                {
                    for (int j = 0; j < W; j++)
                    {
                        if (a[i, j] == 1)
                        {
                            if (p.Equals(new Pair<int, int>(-1, -1)))
                            {
                                p = new Pair<int, int>(i, j);
                            }
                            else
                            {
                                ans.Add($"{p.First + 1} {p.Second + 1} {i + 1} {j + 1}");
                                p = new Pair<int, int>(-1, -1);
                            }
                        }
                        else
                        {
                            if (!p.Equals(new Pair<int, int>(-1, -1)))
                            {
                                ans.Add($"{p.First + 1} {p.Second + 1} {i + 1} {j + 1}");
                                p = new Pair<int, int>(i, j);
                            }
                        }
                    }
                }
                else
                {
                    for (int j = W - 1; j >= 0; j--)
                    {
                        if (a[i, j] == 1)
                        {
                            if (p.Equals(new Pair<int, int>(-1, -1)))
                            {
                                p = new Pair<int, int>(i, j);
                            }
                            else
                            {
                                ans.Add($"{p.First + 1} {p.Second + 1} {i + 1} {j + 1}");
                                p = new Pair<int, int>(-1, -1);
                            }
                        }
                        else
                        {
                            if (!p.Equals(new Pair<int, int>(-1, -1)))
                            {
                                ans.Add($"{p.First + 1} {p.Second + 1} {i + 1} {j + 1}");
                                p = new Pair<int, int>(i, j);
                            }
                        }
                    }
                }
            }
            Wr.WriteLine(ans.Count);
            foreach (var el in ans)
            {
                Wr.WriteLine(el);
            }
        }

        private bool IsReactive { get; } = false; // TODO: reactive check !!
    }
    class Pair<T1, T2>
        : IComparable<Pair<T1, T2>>,
          IEquatable<Pair<T1, T2>>,
          IDisposable
    {
        public T1 First { get; set; }
        public T2 Second { get; set; }

        public Pair() { }

        public Pair(T1 f, T2 s)
        {
            this.First = f;
            this.Second = s;
        }

        public int CompareTo(Pair<T1, T2> other)
        {
            int ret = 0;
            if (First is IComparable<T1>)
            {
                ret = (First as IComparable<T1>).CompareTo(other.First);
            }
            if (ret == 0 && Second is IComparable<T2>)
            {
                ret = (Second as IComparable<T2>).CompareTo(other.Second);
            }
            return ret;
        }
        public override bool Equals(object obj)
        {
            if (obj is Pair<T1, T2>)
            {
                return this.Equals(obj as Pair<T1, T2>);
            }
            else
            {
                return false;
            }
        }
        public override int GetHashCode()
        {
            return this.First.GetHashCode() ^ this.Second.GetHashCode();
        }
        public Pair<T1, T2> Clone()
        {
            return new Pair<T1, T2>(this.First, this.Second);
        }

        public bool Equals(Pair<T1, T2> other)
        {
            return this.First.Equals(other.First) && this.Second.Equals(other.Second);
        }

        public void Dispose()
        {
            if (this.First is IDisposable)
            {
                (this.First as IDisposable).Dispose();
            }
            if (this.Second is IDisposable)
            {
                (this.Second as IDisposable).Dispose();
            }
        }
    }
}


Measured memory_bytes: 38548