#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < int(n); i++)
#define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--)
#define reps(i, n) for (int i = 1; i <= int(n); i++)
#define rreps(i, n) for (int i = int(n); i >= 1; i--)
#define repc(i, n) for (int i = 0; i <= int(n); i++)
#define rrepc(i, n) for (int i = int(n); i >= 0; i--)
#define repi(i, a, b) for (int i = int(a); i < int(b); i++)
#define repic(i, a, b) for (int i = int(a); i <= int(b); i++)
#define all(a) (a).begin(), (a).end()
#define bit32(x) (1 << (x))
#define bit64(x) (1ll << (x))
#define sz(v) ((int) v.size())

using namespace std;

using i64 = long long;
using f80 = long double;
using vi32 = vector<int>;
using vi64 = vector<i64>;
using vf80 = vector<f80>;
using vstr = vector<string>;

inline void yes() { cout << "Yes" << endl; exit(0); }
inline void no() { cout << "No" << endl; exit(0); }
inline i64 gcd(i64 a, i64 b) { if (min(a, b) == 0) return max(a, b); if (a % b == 0) return b; return gcd(b, a % b); }
inline i64 lcm(i64 a, i64 b) { if (min(a, b) == 0) return max(a, b); return a / gcd(a, b) * b; }
template <typename T> class pqasc : public priority_queue<T, vector<T>, greater<T>> {};
template <typename T> class pqdesc : public priority_queue<T, vector<T>, less<T>> {};
template <typename T> inline void amax(T &x, T y) { x = max(x, y); }
template <typename T> inline void amin(T &x, T y) { x = min(x, y); }
template <typename T> inline T exp(T x, i64 n, T e = 1) { T r = e; while (n > 0) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; }
template <typename T> istream& operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; }
template <typename T> ostream& operator<<(ostream &os, vector<T> &v) { rep(i, v.size()) { if (i) os << ' '; os << v[i]; } return os; }
void solve(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(16); solve(); return 0; }

template <typename T>
struct FenwickTree {
  vector<T> v;
  int n;
  FenwickTree(int n) : n(n) {
    v = vector<T>(n);
  }
  void update(int i, T x) {
    for (i++; i <= n; i += i & -i) v[i - 1] += x;
  }
  T query(int i) {
    T r = 0;
    for (; i >= 1; i -= i & -i) r += v[i - 1];
    return r;
  }
};

void solve() {
  int n;
  cin >> n;
  vi32 q(n), x(n), y(n);
  rep(i, n) {
    cin >> q[i] >> x[i] >> y[i];
  }
  set<int> se;
  rep(i, n) if (q[i] == 1) {
    se.insert(x[i]);
    se.insert(y[i]);
  } else {
    se.insert(x[i]);
  }
  vi32 o;
  for (auto s : se) o.push_back(s);
  int m = sz(o);
  FenwickTree<int> ft(m);
  int ans = 0;
  rep(i, n) {
    if (q[i] == 0) {
      if (o[0] > x[i]) continue;
      if (o[m - 1] < x[i]) continue;
      int d = lower_bound(all(o), x[i]) - o.begin();
      if (o[d] != x[i]) {
        d += 1;
      }
      ft.update(d, y[i]);
    } else {
      int l = lower_bound(all(o), x[i]) - o.begin();
      int r = lower_bound(all(o), y[i]) - o.begin() + 1;
      int sum = ft.query(r) - ft.query(l);
      ans += sum;
    }
  }
  cout << ans << endl;
}