#include <bits/stdc++.h>
 
//    #include <boost/multiprecision/cpp_int.hpp>
// #define int long long
 #define inf  1000000007
 #define pa pair<int,int>
 #define ll long long
 #define pal pair<double,double>
 #define ppap pair<pa,int>
  #define PI 3.14159265358979323846
  #define paa pair<int,char>
  #define  mp make_pair
  #define  pb push_back
  #define EPS (1e-8)
                                          
    int dx[8]={0,1,0,-1,1,1,-1,-1};
    int dy[8]={1,0,-1,0,-1,1,1,-1};
                                            using namespace std;
                                   			class pa3{
                                            	public:
                                            	int x;
                                   				int y,z;
                                            	pa3(int x=0,int y=0,int z=0):x(x),y(y),z(z) {}
                                            	bool operator < (const pa3 &p) const{
                                            		if(x!=p.x) return x<p.x;
                                            		if(y!=p.y) return y<p.y;
                                            		 return z<p.z;
                                            		//return x != p.x ? x<p.x: y<p.y;
                                            	}
                                   				bool operator > (const pa3 &p) const{
                                            		if(x!=p.x) return x>p.x;
                                            		if(y!=p.y) return y>p.y;
                                            		 return z>p.z;
                                            		//return x != p.x ? x<p.x: y<p.y;
                                            	}
                                            	bool operator == (const pa3 &p) const{
                                            		return x==p.x && y==p.y && z==p.z;
                                            	}
                                            		bool operator != (const pa3 &p) const{
                                            			return !( x==p.x && y==p.y && z==p.z);
                                            	}
                                            
                                            };
                                            
                                            class pa4{
                                            	public:
                                            	int x;
                                            	int y,z,w;
                                            	pa4(int x=0,int y=0,int z=0,int w=0):x(x),y(y),z(z),w(w) {}
                                            	bool operator < (const pa4 &p) const{
                                            		if(x!=p.x) return x<p.x;
                                            		if(y!=p.y) return y<p.y;
                                            		if(z!=p.z)return z<p.z;
                                            		return w<p.w;
                                            		//return x != p.x ? x<p.x: y<p.y;
                                            	}
                                            	bool operator > (const pa4 &p) const{
                                            		if(x!=p.x) return x>p.x;
                                            		if(y!=p.y) return y>p.y;
                                            		if(z!=p.z)return z>p.z;
                                            		return w>p.w;
                                            		//return x != p.x ? x<p.x: y<p.y;
                                            	}
                                            	bool operator == (const pa4 &p) const{
                                            		return x==p.x && y==p.y && z==p.z &&w==p.w;
                                            	}
                                            		
                                            
                                            };
                                            class pa2{
                                            	public:
                                            	int x,y;
                                            	pa2(int x=0,int y=0):x(x),y(y) {}
                                            	pa2 operator + (pa2 p) {return pa2(x+p.x,y+p.y);}
                                            	pa2 operator - (pa2 p) {return pa2(x-p.x,y-p.y);}
                                            	bool operator < (const pa2 &p) const{
                                            		return y != p.y ? y<p.y: x<p.x;
                                            	}
                                            	bool operator > (const pa2 &p) const{
                                            		return x != p.x ? x<p.x: y<p.y;
                                            	}
                                            	bool operator == (const pa2 &p) const{
                                            		return abs(x-p.x)==0 && abs(y-p.y)==0;
                                            	}
                                            	bool operator != (const pa2 &p) const{
                                            		return !(abs(x-p.x)==0 && abs(y-p.y)==0);
                                            	}
                                            		
                                            
                                            };
                                            
 
                      
                                string itos( int i ) {
                                ostringstream s ;
                                s << i ;
                                return s.str() ;
                                }
                                 
                                int gcd(int v,int b){
                                	if(v==0) return b;
                                	if(b==0) return v;
                                	if(v>b) return gcd(b,v);
                                	if(v==b) return b;
                                	if(b%v==0) return v;
                                	return gcd(v,b%v);
                                }
                 
                            
                                int mod;
int extgcd(int a, int b, int &x, int &y) {
    if (b == 0) {
        x = 1;
        y = 0;
        return a;
    }
    int d = extgcd(b, a%b, y, x);
    y -= a/b * x;
    return d;
}
pa operator+(const pa & l,const pa & r) {   
    return {l.first+r.first,l.second+r.second};                                    
}    
pa operator-(const pa & l,const pa & r) {   
    return {l.first-r.first,l.second-r.second};                                    
}  
                int beki(int wa,int rr,int warukazu){
                	if(rr==0) return 1%warukazu;
                	if(rr==1) return wa%warukazu;
                	wa%=warukazu;
                	if(rr%2==1) return ((ll)beki(wa,rr-1,warukazu)*(ll)wa)%warukazu;
                	ll zx=beki(wa,rr/2,warukazu);
                	return (zx*zx)%warukazu;
                }
 
                              
                int pr[1000100];
                int inv[1000010];
                

                
    			int comb(int nn,int rr){
    				if(rr<0 || rr>nn || nn<0) return 0;
    				int r=pr[nn]*inv[rr];
    				r%=mod;
    				r*=inv[nn-rr];
    				r%=mod;
    				return r;
    			}
               
                void gya(int ert){
                	pr[0]=1;
                	for(int i=1;i<=ert;i++){
                		pr[i]=((ll)pr[i-1]*i)%mod;
                	}
                		inv[ert]=beki(pr[ert],mod-2,mod);
                	for(int i=ert-1;i>=0;i--){
                		inv[i]=(ll)inv[i+1]*(i+1)%mod;
                	}
                }
                
              //   cin.tie(0);
    		//	ios::sync_with_stdio(false);
    			//priority_queue<pa3,vector<pa3>,greater<pa3>> pq;            
                 //sort(ve.begin(),ve.end(),greater<int>());
 //   mt19937(clock_per_sec);
  //  mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count()) ;
bool hikaku(pa x,pa y){
	if(x.second!=y.second)return x.second<y.second;
	return y.first<x.first;
}



vector<pa> ve[30];

int v[(1<<18)+10]={};

int w[(1<<18)+10]={};


const int D=9;
vector<pa> que[(1<<18)+10];
int ans[200020];
void dfs(int r,int dep,int n){
	if(r>n)return;
	if(dep==D+1){
		ve[dep].clear();
		ve[dep].pb(mp(0,0));
		ve[dep].pb(mp(v[r],w[r]));
		
	}
	else{
		vector<pa> tmp;
		for(auto vv:ve[dep-1])if(vv.second+w[r]<=100000)tmp.pb(vv+mp(v[r],w[r]));
		ve[dep].clear();
		int i=0,j=0;
		while(1){
			if(i==(int) ve[dep-1].size() &&j==(int) tmp.size()  )break;
			else if(i==(int) ve[dep-1].size()){
				ve[dep].pb(tmp[j]);
				j++;
			}
			else if(j==(int) tmp.size()){
				ve[dep].pb(ve[dep-1][i]);
				i++;
			}
			else{
				if(ve[dep-1][i].second < tmp[j].second || (ve[dep-1][i].second == tmp[j].second && ve[dep-1][i].first >= tmp[j].first) ){
					ve[dep].pb(ve[dep-1][i]);
					i++;
				}
				else{
					ve[dep].pb(tmp[j]);
				j++;
				}
			}
		}
		//cout<<ve[dep].size()<<endl;
	}
	for(int i=1;i<(int)ve[dep].size();i++)ve[dep][i].first=max(ve[dep][i].first,ve[dep][i-1].first);
	
	for(auto q:que[r]){
		if(dep<=D){
			int f=0;
			for(auto v:ve[dep])if(v.second<=q.second)f=max(f,v.first);
			ans[q.first]=f;
		}
		else{
			int e=ve[dep].size();
			e--;
			int f=0;
			for(auto vv:ve[D])if(vv.second<=q.second){
				while(ve[dep][e].second+vv.second>q.second)e--;
				f=max(f,ve[dep][e].first+vv.first);
			}
			ans[q.first]=f;
		}
	}
	dfs(2*r,dep+1,n);
	dfs(2*r+1,dep+1,n);
	
}

signed main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	
	//const int d=9;
	int n;
	cin>>n;
	for(int i=1;i<=n;i++)cin>>v[i]>>w[i];
	ve[0].pb(mp(0,0));
	int q;
	cin>>q;
	for(int i=0;i<q;i++){
		int t,W;
		cin>>t>>W;
		que[t].pb(mp(i,W));
	}
	
	dfs(1,1,n);
	for(int i=0;i<q;i++)cout<<ans[i]<<endl;
	
	
	return 0;
 }


Measured memory_bytes: 15344