using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
static class Program{
	const int mod=(int)1e9+7;
	static void Main(){
		Sc sc=new Sc();
		var s=sc.Ia;
		int p=s[1];
		var o=new int[]{s[1]-s[2],s[2]-s[1]};
		var b=true;
		St st=new St(s[0]+2,false,true,0);
		for(int i = 1,j=0;;i++) {
			p+=i*o[i&1];
			if(p>0&&p<=s[0]){
				j++;
				st.Ud(p,j);
				b=true;
			}
			else if(b){b=false;}
			else{break;}
		}
		var pq=new Pq<Dt<Tuple<int,long>>>(32,true);
		var n=sc.I;
		for(int i = 0;i<n;i++) {
			var e=sc.La;
			pq.Push(new Dt<Tuple<int,long>>(e[0]*2+1,Tuple.Create(i,e[1]*2)));
		}
		var d=new int[n];
		var r=new int[s[0]+2];
		var g=new Dt<Tuple<int,long>>[n+1];
		int k=0,l=0;
		while(pq.cnt>0){
			var e=pq.Top;
			pq.Pop();
			if(e.d.Item2!=-1){
				if(st.Get(1,s[0]).d>=1e9){
					g[k]=e;
					k++;
					continue;
				}
				int z=st.Get(1,s[0]).n;
				st.Ud(z,(long)1e9);
				if(r[z+1]==0){st.Ud(z+1,200000);}
				if(r[z-1]==0){st.Ud(z-1,200000);}
				r[z+1]++;
				r[z-1]++;
				pq.Push(new Dt<Tuple<int,long>>((e.n+e.d.Item2)&-2,Tuple.Create(e.d.Item1,-1L)));
				d[e.d.Item1]=z;
			}
			else{
				int z=d[e.d.Item1];
				st.Ud(z,(long)-1e9);
				r[z+1]--;
				r[z-1]--;
				if(r[z+1]==0){st.Ud(z+1,-200000);}
				if(r[z-1]==0){st.Ud(z-1,-200000);}
			}
			if((pq.cnt==0||pq.Top.n!=e.n)){
				while(g[l]!=null&&st.Get(1,s[0]).d<1e9){
					int z=st.Get(1,s[0]).n;
					st.Ud(z,(long)1e9);
					if(r[z+1]==0){st.Ud(z+1,200000);}
					if(r[z-1]==0){st.Ud(z-1,200000);}
					r[z+1]++;
					r[z-1]++;
					pq.Push(new Dt<Tuple<int,long>>((e.n+g[l].d.Item2)&-2,Tuple.Create(g[l].d.Item1,-1L)));
					d[g[l].d.Item1]=z;
					l++;
				}
			}
		}
		Console.WriteLine(String.Join("\n",d));
	}
}
public class Dt<T>:IComparable{
	public long n;
	public T d;
	public Dt(long n,T d){this.n=n;this.d=d;}
	public int CompareTo(object obj){
		Dt<T> mymo=(Dt<T>)obj;
		if(mymo.n>n){return -1;}
		else if(mymo.n<n){return 1;}
		else{return 0;}
	}
}
public class Pq<T> where T:IComparable{
	private T[] he;
	public int cnt=0,max=0;
	private Func<T,T,int> compare;
	public Pq(int max,bool mm){
		this.max=max;
		he=new T[max];
		if(mm){compare=Ao;}
		else{compare=Do;}
	}
	public void Push(T x){
		if(cnt==max){Extend();}
		int j=cnt;
		while(j!=0&&compare(x,he[(j-1)>>1])>0){he[j]=he[(j-1)>>1];j=(j-1)>>1;}
		he[j]=x;
		cnt++;
	}
	public void Pop(){
		cnt--;
		T r=he[cnt];
		int j=0;
		while(true){
			if(j*2+1<cnt){
				if(compare(he[j*2+1],he[j*2+2])>0){j=j*2+1;}
				else{j=j*2+2;}
			}
			else if(j*2<cnt){j=j*2+1;}
			else{break;}
			if(compare(he[j],r)<=0){j=(j-1)>>1;break;}
			he[(j-1)>>1]=he[j];
		}
		he[j]=r;
	}
	private int Ao(T x,T y){return y.CompareTo(x);}
	private int Do(T x,T y){return x.CompareTo(y);}
	public T Top{get{return he[0];}}
	private void Extend(){
		T[] nhe=new T[max<<1];
		Array.Copy(he,nhe,max);
		he=nhe;
		max<<=1;
	}
}

public class St{
	public class Dt{
		public int n;
		public long d;
		public Dt(long d,int n){this.d=d;this.n=n;}
	}
	public Dt[] dat;
	private int m=1;
	private bool mm,ku;
	private Dt du;
	private Func<Dt,Dt,bool> compare;
	public St(int n,bool mm,bool ku,long df){
		this.mm=mm;this.ku=ku;
		if(mm){du=new Dt(long.MinValue,-1);compare=CoMax;}
		else{du=new Dt(long.MaxValue,-1);compare=CoMin;}
		while(m<n){m<<=1;}
		m--;
		dat=new Dt[m+n+1];
		dat[m+n]=du;
		for(int i=m+n-1;i>=m;i--){dat[i]=new Dt(df,i-m);}
		for(int i=m-1;i>=0;i--){dat[i]=(i<<1)+1<m+n?dat[(i<<1)+1]:du;}
	}
	private bool CoMax(Dt x,Dt y){return x.d>y.d;}
	private bool CoMin(Dt x,Dt y){return x.d<y.d;}
	public void Ud(int q,long b){
		q+=m;
		if(ku){b+=dat[q].d;}
		dat[q].d=du.d;
		dat[q]=new Dt(b,q-m);
		q=(q-1)>>1;
		while(q>=0){
			Dt o=compare(dat[2*q+1],dat[2*q+2])?dat[2*q+1]:dat[2*q+2];
			if(dat[q]==o){break;}
			dat[q]=o;
			q=(q-1)>>1;
		}
	}
	private Dt Fdg(int a,int b,int k,int l,int r){
		if(r<a||b<l){return du;}
		if(a<=l&&r<=b){return dat[k];}
		Dt p=Fdg(a,b,k*2+1,l,(l+r)>>1);
		Dt q=Fdg(a,b,k*2+2,(l+r+1)>>1,r);
		return compare(p,q)?p:q;
	}
	public Dt Get(int a,int b){return Fdg(a,b,0,0,m);}
}

public class Sc{
	public int I{get{return int.Parse(Console.ReadLine());}}
	public long L{get{return long.Parse(Console.ReadLine());}}
	public double D{get{return double.Parse(Console.ReadLine());}}
	public string S{get{return Console.ReadLine();}}
	public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
	public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
	public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
	public string[] Sa{get{return Console.ReadLine().Split();}}
	public object[] Oa{get{return Console.ReadLine().Split();}}
	public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
	public int[] Ia3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),int.Parse);}
	public int[] Ia3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),int.Parse);}
	public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
	public long[] La3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),long.Parse);}
	public long[] La3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),long.Parse);}
	public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
	public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
	public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
	public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
}