#line 1 "..\\Main.cpp"
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <atcoder/modint>
#line 1 "D:\\Programming\\VSCode\\competitive-cpp\\nachia\\vec.hpp"

#line 3 "D:\\Programming\\VSCode\\competitive-cpp\\nachia\\vec.hpp"
#include <iterator>
#line 5 "D:\\Programming\\VSCode\\competitive-cpp\\nachia\\vec.hpp"

template<class Elem> struct vec;
struct iotai;

template<class Iter>
struct seq_view{
    using Ref = typename std::iterator_traits<Iter>::reference;
    using Elem = typename std::iterator_traits<Iter>::value_type;
    Iter a, b;
    Iter begin() const { return a; }
    Iter end() const { return b; }
    int size() const { return (int)(b-a); }
    seq_view(Iter first, Iter last) : a(first), b(last) {}
    seq_view sort() const { std::sort(a, b); return *this; }
    Ref& operator[](int x){ return *(a+x); }
    template<class F, class ret = vec<int>> ret sorti(F f) const {
        ret x(iotai(0), iotai(size()));
        x().sort([&](int l, int r){ return f(a[l],a[r]); });
        return x;
    }
    template<class ret = vec<Elem>> ret col() const { return ret(begin(), end()); }
    template<class F> seq_view sort(F f) const { std::sort(a, b, f); return *this; }
    Iter uni() const { return std::unique(a, b); }
    Iter lb(const Elem& x) const { return std::lower_bound(a, b, x); }
    Iter ub(const Elem& x) const { return std::upper_bound(a, b, x); }
    template<class F> Iter lb(const Elem& x, F f) const { return std::lower_bound(a, b, x, f); }
    template<class F> Iter ub(const Elem& x, F f) const { return std::upper_bound(a, b, x, f); }
    template<class F> Iter when_true_to_false(F f) const {
        if(a == b) return a;
        return std::lower_bound(a, b, *a,
            [&](const Elem& x, const Elem& y){ return f(x); });
    }
    seq_view same(Elem x) const { return { lb(x), ub(x) }; }
    template<class F> auto map(F f) const {
        vec<typename Iter::value_type> r;
        for(auto& x : *this) r.emp(f(x));
        return r;
    }
    Iter max() const { return std::max_element(a, b); }
    Iter min() const { return std::min_element(a, b); }
    seq_view rev() const { std::reverse(a, b); return *this; }
};

struct iotai {
    using i64 = long long;
    using Me = iotai;
    using value_type = i64;
    using iterator_category = std::random_access_iterator_tag;
    using difference_type = ptrdiff_t;
    using pointer = i64*;
    using reference = i64&;
    i64 x;
    iotai(i64 y) : x(y) {}
    i64 operator*() const { return x; }
    std::size_t operator-(Me a) const { return x - a.x; }
    Me operator++(){ return { (i64)(++x) }; }
    Me operator--(){ return { (i64)(--x) }; }
    Me operator++(int){ return { (i64)(x++) }; }
    Me operator--(int){ return { (i64)(x--) }; }
    Me operator+(std::size_t a) const { return { (i64)(x+a) }; }
    Me operator-(std::size_t a) const { return { (i64)(x-a) }; }
    static seq_view<iotai> range(i64 l, i64 r){ return { Me{l}, Me{r} }; }
};

template<class Elem>
struct vec {
    using Base = typename std::vector<Elem>;
    using Iter = typename Base::iterator;
    using CIter = typename Base::const_iterator;
    using View = seq_view<Iter>;
    using CView = seq_view<CIter>;

    vec(){}
    explicit vec(int n, const Elem& value = Elem()) : a(0<n?n:0, value) {}
    template <class I2> vec(I2 first, I2 last) : a(first, last) {}
    vec(std::initializer_list<Elem> il) : a(std::move(il)) {}
    operator Base() const { return a; }

    Iter begin(){ return a.begin(); }
    CIter begin() const { return a.begin(); }
    Iter end(){ return a.end(); }
    CIter end() const { return a.end(); }
    int size() const { return a.size(); }
    vec sortunied(){ vec x = *this; x().sort(); x.a.erase(x().uni(), x.end()); return x; }
    Iter operator()(int x){ return (x < 0 ? a.end() : a.begin()) + x; }
    CIter operator()(int x) const { return (x < 0 ? a.end() : a.begin()) + x; }
    View operator()(int l, int r){ return { (*this)(l), (*this)(r) }; }
    CView operator()(int l, int r) const { return { (*this)(l), (*this)(r) }; }
    View operator()(){ return (*this)(0,size()); }
    CView operator()() const { return (*this)(0,size()); }
    Elem& operator[](int x){ return *((*this)(x)); }
    const Elem& operator[](int x) const { return *((*this)(x)); }
    Base& operator*(){ return a; }
    const Base& operator*() const { return a; }
    template<class... Args>
    vec& emp(Args &&... args){
        a.emplace_back(std::forward<Args>(args) ...);
        return *this;
    }
    template<class Range>
    vec& app(Range& x){ for(auto& v : a) emp(v); }
    Elem pop(){
        Elem x = std::move(a.back());
        a.pop_back(); return x;
    }
    Base a;
};
#line 2 "D:\\Programming\\VSCode\\competitive-cpp\\nachia\\array\\segment-tree.hpp"

#line 4 "D:\\Programming\\VSCode\\competitive-cpp\\nachia\\array\\segment-tree.hpp"

namespace nachia{

template<
    class S,
    S op(S l, S r)
>
struct SegmentTree {
private:
    int N;
    std::vector<S> A;

    void mergev(int i){
        if(i < N) A[i] = op(A[i*2], A[i*2+1]);
    }
public:
    SegmentTree(int n, S e){
        N = 1; while (N < n) N *= 2;
        A.assign(N * 2, e);
    }
    SegmentTree(const std::vector<S>& a, S e) : SegmentTree(a.size(), e){
        for(int i=0; i<(int)a.size(); i++) A[i + N] = a[i];
        for(int i=N-1; i>=1; i--) mergev(i);
    }

    void set(int p, S x){
        p += N; A[p] = x;
        for(int d=1; (1<<d)<=N; d++) mergev(p>>d);
    }

    S get(int p){ return A[N+p]; }

    S prod(int l, int r) const {
        l += N; r += N;
        S ql = A[0], qr = A[0];
        while(l<r){
            if(l&1) ql = op(ql, A[l++]);
            if(r&1) qr = op(A[--r], qr);
            l /= 2;
            r /= 2;
        }
        return op(ql, qr);
    }

    S allProd() const { return A[1]; }

    // bool cmp(S)
    template<class E>
    int minLeft(int r, E cmp, int a = 0, int b = 0, int i = -1){
        static S x;
        if(i == -1){ a=0; b=N; i=1; x=A[0]; }
        if(r <= a) return a;
        if(b <= r){
            S nx = op(A[i], x);
            if(cmp(nx)){ x = nx; return a; }
        }
        if(b - a == 1) return b;
        int q = minLeft(r, cmp, (a+b)/2, b, i*2+1);
        if(q > (a+b)/2) return q;
        return minLeft(r, cmp, a, (a+b)/2, i*2);
    }

    // bool cmp(S)
    template<class E>
    int maxRight(int l, E cmp, int a = 0, int b = 0, int i = -1){
        static S x;
        if(i == -1){ a=0; b=N; i=1; x=A[0]; }
        if(b <= l) return b;
        if(l <= a){
            S nx = op(x, A[i]);
            if(cmp(nx)){ x = nx; return b; }
        }
        if(b - a == 1) return a;
        int q = maxRight(l, cmp, a, (a+b)/2, i*2);
        if(q < (a+b)/2) return q;
        return maxRight(l, cmp, (a+b)/2, b, i*2+1);
    }
};

} // namespace nachia
#line 8 "..\\Main.cpp"
using namespace std;
using i32 = int;
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
#define rep(i,n) for(int i=0; i<(int)(n); i++)
const i64 INF = 1001001001001001001;

using Modint = atcoder::static_modint<998244353>;

struct S {
    i64 ans;
    i64 l;
    i64 r;
    i64 sum;
    bool e = false;
};
S op(S l, S r){
    if(r.e) return l;
    if(l.e) return r;
    r.l += l.sum;
    r.r += l.sum;
    return { max({ l.ans, r.ans, r.r - l.l }), min(l.l, r.l), max(l.r, r.r), l.sum + r.sum };
}

int main(){
    int N, Q; cin >> N;
    vector<pair<i64, i64>> A(N);
    rep(i,N) cin >> A[i].first >> A[i].second;
    cin >> Q;
    vector<i64> T(Q), X(Q), Y(Q);
    rep(i,Q) cin >> T[i] >> X[i] >> Y[i];
    vec<i64> P(N+1);
    rep(i,N) P[i+1] = P[i] + A[i].second;
    rep(i,Q){
        if(T[i] == 1){
            X[i]--;
            P.emp(X[i]);
            P.emp(X[i]+1);
        }
        if(T[i] == 2){
            X[i]--;
            P.emp(X[i]);
            P.emp(Y[i]);
        }
    }
    P = P.sortunied();
    vector<i64> H(P.size()-1); {
        i64 p = 0;
        for(auto [a,b] : A){
            i64 q = p + b;
            i64 l = P().lb(p) - P(0);
            i64 r = P().lb(q) - P(0);
            for(i64 i=l; i<r; i++) H[i] = a;
            p = q;
        }
    }
    auto seg = nachia::SegmentTree<S, op>(P.size()-1, {INF,-INF,-INF,0,true});
    rep(i,P.size()-1){
        S q;
        i64 w = P[i+1] - P[i];
        q.ans = max(H[i], H[i] * w);
        q.l = min((w-1) * H[i], 0ll);
        q.r = max(w * H[i], H[i]);
        q.sum = w * H[i];
        seg.set(i, q);
    }
    rep(qi, Q){
        if(T[qi] == 1){
            i64 p = P().lb(X[qi]) - P(0);
            seg.set(p, { Y[qi], 0, Y[qi], Y[qi] });
        }
        else{
            i64 l = P().lb(X[qi]) - P(0);
            i64 r = P().lb(Y[qi]) - P(0);
            cout << seg.prod(l, r).ans << '\n';
        }
    }
    return 0;
}



struct ios_do_not_sync{
    ios_do_not_sync(){
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} ios_do_not_sync_instance;