#include <bits/stdc++.h> using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int N,K1,K2,M; int order[101010]; int X[101010],Y[101010]; set<pair<int,int>> A; set<pair<int,int>> B; set<pair<int,int>> ev; int ret[101010]; void fix(int x) { if(x<1 || x>N) return; if(A.count({order[x],x})==0 && B.count({order[x],x})==0) return; int nei=0; if(x>1&&A.count({order[x-1],x-1})==0 && B.count({order[x-1],x-1})==0) nei++; if(x<N&&A.count({order[x+1],x+1})==0 && B.count({order[x+1],x+1})==0) nei++; if(nei==0) { B.erase({order[x],x}); A.insert({order[x],x}); } else { A.erase({order[x],x}); B.insert({order[x],x}); } } void solve() { int i,j,k,l,r,x,y; string s; cin>>N>>K1>>K2; x=0; if(K1<K2) { FOR(i,N) { if(K1-i>=1) order[K1-i]=x++; if(K2+i<=N) order[K2+i]=x++; } } else { FOR(i,N) { if(K1+i<=N) order[K1+i]=x++; if(K2-i>=1) order[K2-i]=x++; } } FOR(i,N) A.insert({order[i+1],i+1}); cin>>M; FOR(i,M) { cin>>X[i]>>Y[i]; ev.insert({X[i],M+i}); } queue<int> Q; int pret=-1; while(ev.size()) { auto p=*ev.begin(); ev.erase(ev.begin()); if(pret<p.first) { while(Q.size() && (A.size()+B.size())) { x=Q.front(); if(A.size()) { auto p2=*A.begin(); A.erase(A.begin()); ret[x]=p2.second; //cerr<<"!"<<p.first<<" "<<x<<" "<<ret[x]<<endl; ev.insert({p.first+Y[x],x}); fix(ret[x]-1); fix(ret[x]+1); Q.pop(); } else if(B.size()) { auto p2=*B.begin(); B.erase(B.begin()); ret[x]=p2.second; //cerr<<p.first<<" "<<x<<" "<<ret[x]<<endl; ev.insert({p.first+Y[x],x}); fix(ret[x]-1); fix(ret[x]+1); Q.pop(); } } } pret=p.first; if(p.second<M) { x=p.second; //cerr<<"#"<<ret[x]<<endl; B.insert({order[ret[x]],ret[x]}); fix(ret[x]); fix(ret[x]-1); fix(ret[x]+1); } else { x=p.second-M; if(A.size()) { auto p2=*A.begin(); A.erase(A.begin()); ret[x]=p2.second; //cerr<<"!"<<p.first<<" "<<x<<" "<<ret[x]<<endl; ev.insert({p.first+Y[x],x}); fix(ret[x]-1); fix(ret[x]+1); } else if(B.size()) { auto p2=*B.begin(); B.erase(B.begin()); ret[x]=p2.second; //cerr<<p.first<<" "<<x<<" "<<ret[x]<<endl; ev.insert({p.first+Y[x],x}); fix(ret[x]-1); fix(ret[x]+1); } else { Q.push(x); } } } FOR(i,M) cout<<ret[i]<<endl; } int main(int argc,char** argv){ string s;int i; if(argc==1) ios::sync_with_stdio(false), cin.tie(0); FOR(i,argc-1) s+=argv[i+1],s+='\n'; FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin); cout.tie(0); solve(); return 0; }