#include<algorithm>//sort,二分探索,など
#include<bitset>//固定長bit集合
#include<cmath>//pow,logなど
#include<complex>//複素数
#include<deque>//両端アクセスのキュー
#include<functional>//sortのgreater
#include<iomanip>//setprecision(浮動小数点の出力の誤差)
#include<iostream>//入出力
#include<iterator>//集合演算(積集合,和集合,差集合など)
#include<map>//map(辞書)
#include<numeric>//iota(整数列の生成),gcdとlcm(c++17)
#include<queue>//キュー
#include<set>//集合
#include<stack>//スタック
#include<string>//文字列
#include<unordered_map>//イテレータあるけど順序保持しないmap
#include<unordered_set>//イテレータあるけど順序保持しないset
#include<utility>//pair
#include<vector>//可変長配列

#define rep(i,n) for (int i = 0; i < (n); ++i)
#define erep(i,n) for (int i = 1; i <= (n); ++i)
#define brep(i,n) for (int i = n; i >= 0; i--)
#define pb push_back
using namespace std;
using P = pair<int,int>;
using ll = long long;
using Graph = vector<vector<int> > ;

const double PI=3.14159265358979323846;
const int INF = 100005;
const int MAX_K = 55;
const int MAX_W = 200005; 
const int MAX = 510000;
const int MOD = 10000007;
long long fac[MAX], finv[MAX], inv[MAX];



// ユークリッド互除法
unsigned gcd(unsigned a, unsigned b) {
  while(1) {
    if(a < b) swap(a, b);
    if(!b) break;
    a %= b;
  }
  return a;
}

// テーブルを作る前処理
void COMinit() {
    fac[0] = fac[1] = 1;
    finv[0] = finv[1] = 1;
    inv[1] = 1;
    for (int i = 2; i < MAX; i++){
        fac[i] = fac[i - 1] * i % MOD;
        inv[i] = MOD - inv[MOD%i] * (MOD / i) % MOD;
        finv[i] = finv[i - 1] * inv[i] % MOD;
    }
}

// 二項係数計算
long long COM(int n, int k){
    if (n < k) return 0;
    if (n < 0 || k < 0) return 0;
    return fac[n] * (finv[k] * finv[n - k] % MOD) % MOD;
}

/*
int main() {
    // 前処理
    COMinit();

    // 計算例
    cout << COM(100000, 50000) << endl;
}
*/

struct mint {
  ll x; // typedef long long ll;
  mint(ll x=0):x((x%MOD+MOD)%MOD){}
  mint operator-() const { return mint(-x);}
  mint& operator+=(const mint a) {
    if ((x += a.x) >= MOD) x -= MOD;
    return *this;
  }
  mint& operator-=(const mint a) {
    if ((x += MOD-a.x) >= MOD) x -= MOD;
    return *this;
  }
  mint& operator*=(const mint a) { (x *= a.x) %= MOD; return *this;}
  mint operator+(const mint a) const { return mint(*this) += a;}
  mint operator-(const mint a) const { return mint(*this) -= a;}
  mint operator*(const mint a) const { return mint(*this) *= a;}
  mint pow(ll t) const {
    if (!t) return 1;
    mint a = pow(t>>1);
    a *= a;
    if (t&1) a *= *this;
    return a;
  }

  // for prime MOD
  mint inv() const { return pow(MOD-2);}
  mint& operator/=(const mint a) { return *this *= a.inv();}
  mint operator/(const mint a) const { return mint(*this) /= a;}
};
istream& operator>>(istream& is, const mint& a) { return is >> a.x;}
ostream& operator<<(ostream& os, const mint& a) { return os << a.x;}

struct UnionFind {
    vector<int> par;
    vector<int> rank;
    vector<ll> Size;
    UnionFind(int n = 1) {
        init(n);
    }
 
    void init(int n = 1) {
        par.resize(n + 1); rank.resize(n + 1); Size.resize(n + 1);
        for (int i = 0; i <= n; ++i) par[i] = i, rank[i] = 0, Size[i] = 1;
    }
 
    int root(int x) {
        if (par[x] == x) {
            return x;
        }
        else {
            int r = root(par[x]);
            return par[x] = r;
        }
    }
 
    bool issame(int x, int y) {
        return root(x) == root(y);
    }
 
    bool merge(int x, int y) {
        x = root(x); y = root(y);
        if (x == y) return false;
        if (rank[x] < rank[y]) swap(x, y);
        if (rank[x] == rank[y]) ++rank[x];
        par[y] = x;
        Size[x] += Size[y];
        return true;
    }
 
    ll size(int x){
        return Size[root(x)];
    }
};



/*素因数分解*/
vector<pair<long long, long long> > prime_factorize(long long N) {
    vector<pair<long long, long long> > res;
    for (long long a = 2; a * a <= N; ++a) {
        if (N % a != 0) continue;
        long long ex = 0; // 指数

        // 割れる限り割り続ける
        while (N % a == 0) {
            ++ex;
            N /= a;
        }
        // その結果を push
        res.push_back({a, ex});
    }

    // 最後に残った数について
    if (N != 1) res.push_back({N, 1});
    return res;
}

int dp[1000][100005];
P now[20];

int main(){
    int n,q;
    cin >> n;
    int v[n],w[n];
    rep(i,n) cin >> v[i] >> w[i];
    cin >> q;
    //rep(i,q) ans[i] = 0;
    int db[q];
    int vv,l;
    rep(i,100005) dp[0][i] = 0;
    for(int i=1; i <= min(n,(1<<9)-1); i++){
        for(int j=0; j<100005; j++){
            if(w[i-1] <= j) dp[i][j] = max(dp[i/2][j-w[i-1]] + v[i-1], dp[i/2][j]);
            else dp[i][j] = dp[i/2][j];
        }
    }
    rep(i,q){
        int ans = 0;
        vector<int> root;
        cin >> vv >> l;
    
        if(vv < (1<<9)){
            cout << dp[vv][l] <<endl;
            continue;
        }
        

        int k = 0;
        while(vv >= (1<<9)){
        //while(vv > 0){
            root.pb(vv);
            vv /= 2;
            k++;
        }

        
        rep(ii, (1<<k)){
            int weigh = 0;
            int value = 0;
            rep(j,k){
                if(ii & (1<<j)){
                    weigh += w[root[j]-1];
                    value += v[root[j]-1];
                }
            }
            //cout << value << weigh << endl;
            if(weigh <= l){
                ans = max(ans,max(dp[vv][l],dp[vv][l-weigh]+value));
                //ans[i] = max(ans[i],max(dp[vv][l],dp[vv][l-weigh]+value));
            }
        }
        cout << ans << endl;

    }

    /*rep(i,q){
        cout << ans[i] << endl;
        //cout << db[i] << endl;
    }*/


}

Measured memory_bytes: 205660