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

#define rep(i,m,n) for(int (i)=(int)(m);i<(int)(n);++i)
#define rep2(i,m,n) for(int (i)=(int)(n)-1;i>=(int)(m);--i)
#define REP(i,n) rep(i,0,n)
#define REP2(i,n) rep2(i,0,n)
#define FOR(i,c) for(decltype((c).begin())i=(c).begin();i!=(c).end();++i)
#define all(hoge) (hoge).begin(),(hoge).end()
#define en '\n'
using ll = long long;
using ull = unsigned long long;
template <class T> using vec = vector<T>;
template <class T> using vvec = vector<vec<T>>;
typedef pair<ll, ll> P;
constexpr long long INF = 1LL << 60;
constexpr int INF_INT = 1 << 25;
//constexpr long long MOD = (ll) 1e9 + 7;
constexpr long long MOD = 998244353LL;
using ld=long double;
static const ld pi = 3.141592653589793L;
typedef vector<ll> Array;
typedef vector<Array> Matrix;


template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

struct Edge {
	ll to, rev;
    long double cap;
	Edge(ll _to, long double _cap, ll _rev) {
	to = _to; cap = _cap; rev = _rev;
	}
};
using Edges = vector<Edge>;
using Graph = vector<Edges>;

void add_edge(Graph& G, ll from, ll to, long double cap, bool revFlag, long double revCap) {
	G[from].push_back(Edge(to, cap, (ll)G[to].size()));
	if (revFlag)G[to].push_back(Edge(from, revCap, (ll)G[from].size() - 1));
}


#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")


int v[303030];
int w[303030];
const int max_l=100000;

void solve(){
    int n;
  	scanf("%d",&n);
    REP(i,n) scanf("%d %d",&v[i],&w[i]);

    vvec<P> dp(1024);
    dp[0].push_back(make_pair(0LL,0LL));
    dp[0].push_back(make_pair(w[0],v[0]));

    rep(i,1,min(1024,n)){
        int p=(i+1)/2-1;
        dp[i]=dp[p];
        for(auto [pw,pv]:dp[p]){
            if(pw+w[i]>max_l) break;
            dp[i].push_back(make_pair(pw+w[i],pv+v[i]));
        }
        sort(all(dp[i]));
    }

    auto check = [&](ll max_w, int p, vec<int>& o){
        int n2=o.size();

        vec<P> wv2;

		for(ll bit=0;bit < (1LL<<n2);bit++){
			ll ww=0,vv=0;
			bool flag=true;
			REP(i,n2){
				if((bit&(1LL<<i))!=0){
					ww+=w[o[i]];
					vv+=v[o[i]];
					if(ww>max_w){
						flag=false;
						break;
					}
				}
			}
			if(flag) wv2.push_back(make_pair(ww,vv));
		}
		sort(all(wv2));
 
		ll ans=0LL;
        int t = 0;
        ll ma = -100000000;
        REP2(i,dp[p].size()) {
            while(t < wv2.size() && dp[p][i].first + wv2[t].first <= max_w) {
                ma = max(ma, wv2[t++].second);
            }
            ans = max(ans, ma + dp[p][i].second);
        }
		printf("%lld\n",ans);
    };

    int q;
    scanf("%d",&q);
    REP(i,q){
        int vv,max_w;
        scanf("%d %d",&vv,&max_w);
        if(vv<=1024){
            vv--;
            ll ans=0;
            for(auto j:dp[vv]){
                if(j.first>max_w) break;
                chmax(ans,j.second);
            }
            printf("%lld\n",ans);
            continue;
        }

        vec<int> o;
        int p=0;
        while(vv){
            if(vv<=1024){
                p=vv-1;
                break;
            }
            o.push_back(vv-1);
            vv/=2;
        }
        check(max_w,p,o);
    }
}

int main() {
	
	solve();
	//ll t;cin>>t;REP(i,t) solve();

    return 0;
}


Measured memory_bytes: 16396