#include<bits/stdc++.h>
using namespace std;

using ll=long long;
using pli=pair<ll,int>;

int main(){cin.tie(0);ios::sync_with_stdio(false);
	int N,K1,K2;cin>>N>>K1>>K2;
	vector<int>f(N+2),g(3*N);
	for(int i=1;i<=N;++i){
		int t=2*abs(i-K1)+abs(i-K2);
		f[i]=t;
		g[t]=i;
	}
	set<int>good,bad;
	for(int i=1;i<=N;++i){
		good.insert(f[i]);
	}
	vector<bool>v(N+1);
	int Q;cin>>Q;
	priority_queue<pli,vector<pli>,greater<pli>>pq;
	ll time=0;
	for(int _=0;_<Q;++_){
		ll A,B;cin>>A>>B;
		time=max(time,A);
		redo:
		while(pq.size()&&pq.top().first<=time){
			int k=pq.top().second;pq.pop();
			v[k]=false;
			if((k-1<1||!v[k-1])&&(k+1>N||!v[k+1])){
				good.insert(f[k]);
			}else{
				bad.insert(f[k]);
			}
			if(k>1&&!v[k-1]&&(k-2<1||!v[k-2])){
				bad.erase(f[k-1]);
				good.insert(f[k-1]);
			}
			if(k<N&&!v[k+1]&&(k+2>N||!v[k+2])){
				bad.erase(f[k+1]);
				good.insert(f[k+1]);
			}
		}
		int k;
		if(good.size()){
			k=*good.begin();
			good.erase(k);
		}else if(bad.size()){
			k=*bad.begin();
			bad.erase(k);
		}else{
			assert(time<pq.top().first);
			time=pq.top().first;
			goto redo;
		}
		k=g[k];
		cout<<k<<"\n";
		pq.push({time+B,k});
		v[k]=true;
		if(good.count(f[k-1])){
			good.erase(f[k-1]);
			bad.insert(f[k-1]);
		}
		if(good.count(f[k+1])){
			good.erase(f[k+1]);
			bad.insert(f[k+1]);
		}
	}
	return 0;
}