using System; using System.Collections.Generic; using System.Linq; using System.IO; using System.Threading; using System.Text; using System.Diagnostics; using static util; using P = pair; class Program { static void Main(string[] args) { var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }; var solver = new Solver(sw); // var t = new Thread(solver.solve, 1 << 26); // 64 MB // t.Start(); // t.Join(); solver.solve(); sw.Flush(); } } class Solver { StreamWriter sw; Scan sc; void Prt(string a) => sw.WriteLine(a); void Prt(IEnumerable a) => Prt(string.Join(" ", a)); void Prt(params object[] a) => Prt(string.Join(" ", a)); public Solver(StreamWriter sw) { this.sw = sw; this.sc = new Scan(); } public void solve() { int n, k1, k2; sc.Multi(out n, out k1, out k2); --k1; --k2; var prior = new int[n]; prior[k1] = 0; for (int i = 1, j = 0; i < n; i++) { int d = k2 - k1; { int k = k1 + i * d; if (0 <= k && k < n) { prior[k] = ++j; } } { int k = k1 - i * d; if (0 <= k && k < n) { prior[k] = ++j; } } } // DBG(prior); var hp = new Heap

(n) { rev = true }; var pq = new PriorityQueue>() { rev = true }; var ful = new bool[n]; for (int i = 0; i < n; i++) { hp.Update(i, new P(0, prior[i])); } Func status = j => { if (ful[j]) return 2; if ((j == 0 || !ful[j - 1]) && (j == n - 1 || !ful[j + 1])) return 0; return 1; }; int q = sc.Int; for (int i = 0; i < q; i++) { long a, b; sc.Multi(out a, out b); while (pq.Count > 0 && pq.Top.v1 <= a || hp.Top.v1 == 2) { var p = pq.Pop(); a = Math.Max(a, p.v1); var j = p.v2; ful[j] = false; hp.Update(j, new P(status(j), prior[j])); if (j > 0) hp.Update(j - 1, new P(status(j - 1), prior[j - 1])); if (j < n - 1) hp.Update(j + 1, new P(status(j + 1), prior[j + 1])); } { int j = hp.Top_Key; ful[j] = true; pq.Push(new pair(a + b, j)); hp.Update(j, new P(status(j), prior[j])); if (j > 0) hp.Update(j - 1, new P(status(j - 1), prior[j - 1])); if (j < n - 1) hp.Update(j + 1, new P(status(j + 1), prior[j + 1])); Prt(j + 1); } } } } class pair : IComparable> { public T v1; public U v2; public pair() : this(default(T), default(U)) {} public pair(T v1, U v2) { this.v1 = v1; this.v2 = v2; } public int CompareTo(pair a) { int c = Comparer.Default.Compare(v1, a.v1); return c != 0 ? c : Comparer.Default.Compare(v2, a.v2); } public override string ToString() => v1 + " " + v2; public void Deconstruct(out T a, out U b) { a = v1; b = v2; } } static class util { public static readonly int M = 1000000007; // public static readonly int M = 998244353; public static readonly long LM = 1L << 60; public static readonly double eps = 1e-11; public static void DBG(string a) => Console.Error.WriteLine(a); public static void DBG(IEnumerable a) => DBG(string.Join(" ", a)); public static void DBG(params object[] a) => DBG(string.Join(" ", a)); public static void Assert(bool cond) { if (!cond) throw new Exception(); } public static pair make_pair(T v1, U v2) => new pair(v1, v2); public static int CompareList(IList a, IList b) where T : IComparable { for (int i = 0; i < a.Count && i < b.Count; i++) if (a[i].CompareTo(b[i]) != 0) return a[i].CompareTo(b[i]); return a.Count.CompareTo(b.Count); } public static bool inside(int i, int j, int h, int w) => i >= 0 && i < h && j >= 0 && j < w; static readonly int[] dd = { 0, 1, 0, -1 }; // static readonly string dstring = "RDLU"; public static P[] adjacents(int i, int j) => Enumerable.Range(0, dd.Length).Select(k => new P(i + dd[k], j + dd[k ^ 1])).ToArray(); public static P[] adjacents(int i, int j, int h, int w) => Enumerable.Range(0, dd.Length).Select(k => new P(i + dd[k], j + dd[k ^ 1])) .Where(p => inside(p.v1, p.v2, h, w)).ToArray(); public static P[] adjacents(this P p) => adjacents(p.v1, p.v2); public static P[] adjacents(this P p, int h, int w) => adjacents(p.v1, p.v2, h, w); public static Dictionary compress(this IEnumerable a) => a.Distinct().OrderBy(v => v).Select((v, i) => new { v, i }).ToDictionary(p => p.v, p => p.i); public static Dictionary compress(params IEnumerable[] a) => compress(a.Aggregate(Enumerable.Union)); public static T[] inv(this Dictionary dic) { var res = new T[dic.Count]; foreach (var item in dic) res[item.Value] = item.Key; return res; } public static void swap(ref T a, ref T b) where T : struct { var t = a; a = b; b = t; } public static void swap(this IList a, int i, int j) where T : struct { var t = a[i]; a[i] = a[j]; a[j] = t; } public static T[] copy(this IList a) { var ret = new T[a.Count]; for (int i = 0; i < a.Count; i++) ret[i] = a[i]; return ret; } } class Scan { StreamReader sr; public Scan() { sr = new StreamReader(Console.OpenStandardInput()); } public Scan(string path) { sr = new StreamReader(path); } public int Int => int.Parse(Str); public long Long => long.Parse(Str); public double Double => double.Parse(Str); public string Str => sr.ReadLine().Trim(); public pair Pair() { T a; U b; Multi(out a, out b); return new pair(a, b); } public P P => Pair(); public int[] IntArr => StrArr.Select(int.Parse).ToArray(); public long[] LongArr => StrArr.Select(long.Parse).ToArray(); public double[] DoubleArr => StrArr.Select(double.Parse).ToArray(); public string[] StrArr => Str.Split(new[]{' '}, StringSplitOptions.RemoveEmptyEntries); bool eq() => typeof(T).Equals(typeof(U)); T ct(U a) => (T)Convert.ChangeType(a, typeof(T)); T cv(string s) => eq() ? ct(int.Parse(s)) : eq() ? ct(long.Parse(s)) : eq() ? ct(double.Parse(s)) : eq() ? ct(s[0]) : ct(s); public void Multi(out T a) => a = cv(Str); public void Multi(out T a, out U b) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); } public void Multi(out T a, out U b, out V c) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); } public void Multi(out T a, out U b, out V c, out W d) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); d = cv(ar[3]); } public void Multi(out T a, out U b, out V c, out W d, out X e) { var ar = StrArr; a = cv(ar[0]); b = cv(ar[1]); c = cv(ar[2]); d = cv(ar[3]); e = cv(ar[4]); } } // the greatest element pops class PriorityQueue { List buf; public bool rev = false; Func cmp; public PriorityQueue() { buf = new List(); cmp = (i, j) => Comparer.Default.Compare(buf[i], buf[j]) * (rev ? -1 : 1); } public PriorityQueue(Func cmp) { buf = new List(); this.cmp = (i, j) => cmp(buf[i], buf[j]); } void swap(int i, int j) { var t = buf[i]; buf[i] = buf[j]; buf[j] = t; } public void Push(T elem) { int n = buf.Count; buf.Add(elem); while (n > 0) { int i = (n - 1) >> 1; if (cmp(n, i) <= 0) break; swap(i, n); n = i; } } public T Pop() { T ret = buf[0]; int n = buf.Count - 1; buf[0] = buf[n]; buf.RemoveAt(n); for (int i = 0, j; (j = (i << 1) | 1) < n; i = j) { if (j != n - 1 && cmp(j, j + 1) < 0) ++j; if (cmp(i, j) < 0) swap(i, j); else break; } return ret; } public T Top => buf[0]; public int Count => buf.Count; } class Heap { int n; T[] values; int[] keys, indices; Func cmp; public bool rev = false; public Heap(int m) { values = new T[m]; keys = new int[m]; indices = new int[m]; for (int i = 0; i < m; i++) { keys[i] = -1; indices[i] = -1; } n = 0; cmp = (i, j) => Comparer.Default.Compare(values[i], values[j]) * (rev ? -1 : 1); } public void Update(int i, T val) { if (indices[i] == -1) { keys[n] = i; indices[i] = n; ++n; } values[i] = val; int p = indices[i]; while (p > 0) { int par = p - 1 >> 1; if (cmp(keys[par], i) < 0) { keys[p] = keys[par]; indices[keys[p]] = p; p = par; } else break; } while ((p << 1 | 1) < n) { int ch = p << 1 | 1; if (ch < n - 1 && cmp(keys[ch], keys[ch + 1]) < 0) ++ch; if (cmp(i, keys[ch]) < 0) { keys[p] = keys[ch]; indices[keys[p]] = p; p = ch; } else break; } keys[p] = i; indices[i] = p; } public int Pop() { --n; int ret = keys[0]; indices[ret] = -1; int i = keys[n]; keys[n] = -1; T val = values[i]; if (n == 0) return ret; int p = 0; while ((p << 1 | 1) < n) { int ch = p << 1 | 1; if (ch < n - 1 && cmp(keys[ch], keys[ch + 1]) < 0) ++ch; if (cmp(i, keys[ch]) < 0) { keys[p] = keys[ch]; indices[keys[p]] = p; p = ch; } else break; } keys[p] = i; indices[i] = p; return ret; } public T Top => values[keys[0]]; public int Top_Key => keys[0]; }