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

public class Program
{
    public void Proc() {
        Reader.IsDebug = false;
        int[] inpt = Reader.ReadLine().Split(' ').Select(c=>int.Parse(c)).ToArray();

        int a = inpt[0];
        int b = inpt[1];
        int aAndB = inpt[2];
        int roadCount = inpt[3];

        if(aAndB > 0 && a+b-aAndB-1>roadCount) {
            Console.WriteLine(-1);
            return;
        }
        if(aAndB == 0 && a+b-2>roadCount) {
            Console.WriteLine(-1);
            return;
        }

        TreeNode t0 = new TreeNode(0);
        TreeNode t1 = new TreeNode(1);

        if(aAndB == a) {
            t1.Add(t0);
            int idx = 2;
            if(a>1) {
                t0.AddRange(idx, idx+a-2);
            }
            idx = idx+a-1;
            if(b-aAndB>1) {
                t1.AddRange(idx, idx+(b-aAndB)-2);
            }
        } else if(aAndB == b) {
            t0.Add(t1);
            int idx = 2;
            if(b>1) {
                t1.AddRange(idx, idx+b-2);
            }
            idx = idx+b-1;
            if(a-aAndB>1) {
                t0.AddRange(idx, idx+(a-aAndB)-2);
            }
        } else {
            TreeNode t2 = null;
            int idx = 2;
            if(aAndB > 0) {
                t2 = new TreeNode(2);
                idx++;
                if(aAndB >1) {
                    t2.AddRange(idx, idx+aAndB-2);
                    idx=idx+aAndB-1;
                }
                t0.Add(t2);
                t1.Add(t2);
            }
            if(a-aAndB>1) {
                t0.AddRange(idx, idx+(a-aAndB)-2);
                idx = idx+(a-aAndB)-1;
            }
            if(b-aAndB>1) {
                t1.AddRange(idx, idx+(b-aAndB)-2);
            }
        }

        StringBuilder ans = new StringBuilder();
        ans.Append(t0.Print());
        ans.Append(t1.Print());
        int mura = a+b-aAndB;
        Console.WriteLine(mura + " " + (mura-1));
        Console.Write(ans.ToString());
    }

    public class TreeNode {
        public int Id;

        public List<TreeNode> Items = new List<TreeNode>();

        public TreeNode(int id) {
            this.Id = id;
        }
        public void Add(TreeNode cld) {
            this.Items.Add(cld);
        }

        private bool IsPrinted = false;
        public string Print() {
            if(this.IsPrinted) {
                return string.Empty;
            }
            this.IsPrinted = true;
            StringBuilder ret = new StringBuilder();
            this.Items.ForEach(a=>{
                    ret.AppendLine(this.Id + " " + a.Id);
                    ret.Append(a.Print());
                });
            return ret.ToString();
        }
        

        public List<TreeNode> AddRange(int f, int t) {
            List<TreeNode> tmp = new List<TreeNode>();
            for(int i=f; i<=t; i++) {
                tmp.Add(new TreeNode(i));
            }
            this.Items.AddRange(tmp);
            return tmp;
        }
    }

    public class Reader {
        public static bool IsDebug = true;
        private static System.IO.StringReader SReader;
        private static string InitText = @"


1 4 0 3




";
        public static string ReadLine() {
            if(IsDebug) {
                if(SReader == null) {
                    SReader = new System.IO.StringReader(InitText.Trim());
                }
                return SReader.ReadLine();
            } else {
                return Console.ReadLine();
            }
        }
    }
    public static void Main(string[] args)
    {
        Program prg = new Program();
        prg.Proc();
    }
}