#include <bits/stdc++.h>
#pragma GCC diagnostic ignored "-Wsign-compare"
#pragma GCC diagnostic ignored "-Wsign-conversion"
//!===========================================================!//
//!  dP     dP                          dP                    !//
//!  88     88                          88                    !//
//!  88aaaaa88a .d8888b. .d8888b. .d888b88 .d8888b. 88d888b.  !//
//!  88     88  88ooood8 88'  '88 88'  '88 88ooood8 88'  '88  !//
//!  88     88  88.  ... 88.  .88 88.  .88 88.  ... 88        !//
//!  dP     dP  '88888P' '88888P8 '88888P8 '88888P' dP        !//
//!===========================================================!//
using ld = long double;
using ll = long long;
using ull = unsigned long long;
std::mt19937 mt{std::random_device{}()};
template <typename T>
constexpr T INF = std::numeric_limits<T>::max() / 4;
template <typename T>
constexpr T MOD = static_cast<T>(1000000007);
template <typename F>
constexpr F PI() { return 3.1415926535897932385; }
template <typename T, std::size_t N>
std::ostream& operator<<(std::ostream& os, const std::array<T, N>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
template <typename T, typename A>
std::ostream& operator<<(std::ostream& os, const std::deque<T, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
template <typename K, typename T, typename C, typename A>
std::ostream& operator<<(std::ostream& os, const std::multimap<K, T, C, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << "<" << e.first << ": " << e.second << ">,"; }
    return (os << "]" << std::endl);
}
template <typename T, typename C, typename A>
std::ostream& operator<<(std::ostream& os, const std::multiset<T, C, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
template <typename K, typename T, typename C, typename A>
std::ostream& operator<<(std::ostream& os, const std::map<K, T, C, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << "<" << e.first << ": " << e.second << ">,"; }
    return (os << "]" << std::endl);
}
template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::pair<T1, T2>& v) { return (os << "<" << v.first << "," << v.second << ">"); }
template <typename T1, typename T2, typename T3>
std::ostream& operator<<(std::ostream& os, const std::priority_queue<T1, T2, T3>& v)
{
    auto q = v;
    os << "[";
    while (not q.empty()) { os << q.top() << ",", q.pop(); }
    return os << "]\n";
}
template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::queue<T1>& v)
{
    auto q = v;
    os << "[";
    while (not q.empty()) { os << q.front() << ",", q.pop(); }
    return os << "]\n";
}
template <typename T, typename C, typename A>
std::ostream& operator<<(std::ostream& os, const std::set<T, C, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
template <typename T1, typename T2>
std::ostream& operator<<(std::ostream& os, const std::stack<T1>& v)
{
    auto q = v;
    os << "[";
    while (not q.empty()) { os << q.top() << ",", q.pop(); }
    return os << "]\n";
}
template <typename K, typename T, typename H, typename P, typename A>
std::ostream& operator<<(std::ostream& os, const std::unordered_multimap<K, T, H, P, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << "<" << e.first << ": " << e.second << ">,"; }
    return (os << "]" << std::endl);
}
template <typename T, typename H, typename P, typename A>
std::ostream& operator<<(std::ostream& os, const std::unordered_multiset<T, H, P, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
template <typename K, typename T, typename H, typename P, typename A>
std::ostream& operator<<(std::ostream& os, const std::unordered_map<K, T, H, P, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << "<" << e.first << ": " << e.second << ">,"; }
    return (os << "]" << std::endl);
}
template <typename T, typename H, typename P, typename A>
std::ostream& operator<<(std::ostream& os, const std::unordered_set<T, H, P, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
template <typename T, typename A>
std::ostream& operator<<(std::ostream& os, const std::vector<T, A>& v)
{
    os << "[";
    for (const auto& e : v) { os << e << ","; }
    return (os << "]" << std::endl);
}
#define SHOW(...) (std::cerr << "(" << #__VA_ARGS__ << ") = ("), HogeHogeSansuu(__VA_ARGS__), std::cerr << ")" << std::endl;
void HogeHogeSansuu() { ; }
template <typename T>
void HogeHogeSansuu(const T x) { std::cerr << x; }
template <typename T, typename... Args>
void HogeHogeSansuu(const T x, Args... args) { (std::cerr << x << ", "), HogeHogeSansuu(args...); }
template <typename T>
std::vector<T> Vec(const std::size_t n, T v) { return std::vector<T>(n, v); }
template <class... Args>
auto Vec(const std::size_t n, Args... args) { return std::vector<decltype(Vec(args...))>(n, Vec(args...)); }
template <typename T>
constexpr T PopCount(T v) { return v = (v & 0x5555555555555555ULL) + (v >> 1 & 0x5555555555555555ULL), v = (v & 0x3333333333333333ULL) + (v >> 2 & 0x3333333333333333ULL), v = (v + (v >> 4)) & 0x0F0F0F0F0F0F0F0FULL, static_cast<T>(v * 0x0101010101010101ULL >> 56 & 0x7f); }
template <typename T>
constexpr T log2p1(T v) { return v |= (v >> 1), v |= (v >> 2), v |= (v >> 4), v |= (v >> 8), v |= (v >> 16), v |= (v >> 32), PopCount(v); }
template <typename T>
constexpr bool ispow2(const T v) { return (v << 1) == (T(1) << (log2p1(v))); }
template <typename T>
constexpr T ceil2(const T v) { return ispow2(v) ? v : T(1) << log2p1(v); }
template <typename T>
constexpr T floor2(const T v) { return v == 0 ? T(0) : ispow2(v) ? v : T(1) << (log2p1(v) - 1); }
//!====================================================================================================!//
//!  888888ba                      dP                                     .d88888b                     !//
//!  88    '8b                     88                                     88.    "'                    !//
//!  88     88 dP    dP 88d888b.   88        .d8888b. d888888b dP    dP   'Y88888b. .d8888b. .d8888b.  !//
//!  88     88 88    88 88'  '88   88        88'  '88    .d8P' 88    88         '8b 88ooood8 88'  '88  !//
//!  88    .8P 88.  .88 88    88   88        88.  .88  .Y8P    88.  .88   d8'   .8P 88.  ... 88.  .88  !//
//!  8888888P  '8888P88 dP    dP   88888888P '88888P8 d888888P '8888P88    Y88888P  '88888P' '8888P88  !//
//!                 .88                                             .88                           .88  !//
//!             d8888P                                          d8888P                        d8888P   !//
//!====================================================================================================!//
template <typename Base, std::size_t SUPBIT = 30, typename Ind = std::size_t>
class DynamicLazySeg
{
public:
    static constexpr Ind SUP = (Ind)1 << SUPBIT;
    using BaseAlgebra = Base;
    using ValMonoid = typename BaseAlgebra::ValMonoid;
    using OpMonoid = typename BaseAlgebra::OpMonoid;
    using T = typename BaseAlgebra::VT;
    using F = typename BaseAlgebra::OT;
    DynamicLazySeg() : root{std::make_shared<Node>()} {}
    T get(const Ind a) { return accumulate(a, a + 1); }
    void set(Ind a, const T& val)
    {
        modify(a, a + 1, OpMonoid::id());
        auto rec = [&](auto&& self, const Ptr p, Ind L, Ind R) -> void {
            if (L == a and R == a + 1) {
                p->V = val;
            } else {
                if (not p->left) { p->bear(); }
                const Ind M = (L + R) / 2;
                Ptr next = (a < M ? p->left : p->right);
                (a < M ? R : L) = M, self(self, next, L, R), this->up(p);
            }
        };
        rec(rec, root, 0, SUP);
    }
    T accumulate(const Ind L, const Ind R)
    {
        auto rec = [&](auto&& self, Ptr p, const Ind l, const Ind r) -> T {
            if (L <= l and r <= R) {
                return p->V;
            } else if (r <= L or R <= l) {
                return ValMonoid::id();
            } else {
                if (l == L and r == R) { return p->V; }
                if (not p->left) { p->bear(); }
                const Ind mid = (l + r) / 2;
                const T vl = self(self, p->left, l, mid), vr = self(self, p->right, mid, r), v = acc(vl, vr);
                return act(p->A, v, std::min(R, r) - std::max(l, L));
            }
        };
        return rec(rec, root, 0, SUP);
    }
    void modify(const Ind L, const Ind R, const F& f)
    {
        auto rec = [&](auto&& self, Ptr p, const Ind l, const Ind r) -> void {
            if (L <= l and r <= R) {
                this->update(p, f, r - l);
            } else if (r <= L or R <= l) {
            } else {
                if (not p->left) { p->bear(); }
                const std::size_t mid = (l + r) / 2;
                this->update(p->left, p->A, mid - l), this->update(p->right, p->A, r - mid);
                self(self, p->left, l, mid), self(self, p->right, mid, r);
                this->up(p), p->A = OpMonoid::id();
            }
        };
        rec(rec, root, 0, SUP);
    }

private:
    const ValMonoid acc{};
    const OpMonoid compose{};
    const BaseAlgebra act{};
    struct Node
    {
        Node() : V{ValMonoid::id()}, A{OpMonoid::id()} {}
        void bear() { left = std::make_shared<Node>(), right = std::make_shared<Node>(); }
        using Ptr = std::shared_ptr<Node>;
        T V;
        F A;
        Ptr left, right;
    };
    using Ptr = typename Node::Ptr;
    void up(Ptr p) { p->V = acc(p->left->V, p->right->V); }
    void update(Ptr p, const F& f, const Ind l) { p->V = act(f, p->V, l), p->A = compose(f, p->A); }
    Ptr root;
};
//!==========================================================================!//
//!  .d88888b                                888888ba  dP                    !//
//!  88.    "'                               88    '8b 88                    !//
//!  'Y88888b. dP    dP 88d8b.d8b.          a88aaaa8P' 88 dP    dP .d8888b.  !//
//!        '8b 88    88 88''88''88 88888888  88        88 88    88 Y8ooooo.  !//
//!  d8'   .8P 88.  .88 88  88  88           88        88 88.  .88       88  !//
//!   Y88888P  '88888P' dP  dP  dP           dP        dP '88888P' '88888P'  !//
//!==========================================================================!//
namespace for_dynamic {  // これ本当にやめたい
template <typename VX = ll, typename OX = ll>
struct Sum_Plus
{
    using VT = VX;
    struct ValMonoid
    {
        VT operator()(const VT& a, const VT& b) const { return a + b; }
        static constexpr VT id() { return 0; }
    };
    using OT = OX;
    struct OpMonoid
    {
        OT operator()(const OT& f1, const OT& f2) const { return f1 + f2; }
        static constexpr OT id() { return 0; }
    };
    template <typename Ind>
    VT operator()(const OT& f, const VT& x, const Ind l) const { return x + (VT)l * f; }
};
}  // namespace for_dynamic
int main()
{
    DynamicLazySeg<for_dynamic::Sum_Plus<int, int>, 30> dseg;
    int Q;
    std::cin >> Q;
    ll ans = 0;
    for (int q = 0; q < Q; q++) {
        int t;
        std::cin >> t;
        if (t == 0) {
            int x, y;
            std::cin >> x >> y;
            const auto p = dseg.get(x);
            dseg.set(x, p + y);
        } else {
            int l, r;
            std::cin >> l >> r, r++;
            ans += dseg.accumulate(l, r);
        }
    }
    std::cout << ans << std::endl;
    return 0;
}