#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef pair<ll, ll> p_ll;

template<class T>
void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; }
#define repr(i,from,to) for (ll i=(ll)from; i<(ll)to; i++)
#define all(vec) vec.begin(), vec.end()
#define rep(i,N) repr(i,0,N)
#define per(i,N) for (int i=(int)N-1; i>=0; i--)

const ll MOD = pow(10,9)+7;
const ll LLINF = pow(2,61)-1;
const int INF = pow(2,30)-1;

vector<ll> fac;
void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; }
ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; }
ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; }
ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); }
ll lcm(ll a, ll b) { return a/gcd(a,b)*b; }

// ----------------------------------------------------------------------
// ----------------------------------------------------------------------

struct SegTree {
  int size;
  vector<ll> pos;
  SegTree(ll N) { size = 1; while(size<N) size<<=1; pos.resize(2*size,0); }
  ll operator[](const ll &x) const { return pos[x+size]; }

  void build() { per(i,size) operate(i); }
  void set(ll x, const ll v) { pos[x+size] = v; }
  void update(ll x, const ll v) { set(x,v); x+=size; while (x>>=1) operate(x); }
  ll query(ll a, ll b) {
    ll L = 0, R = 0;
    for (a+=size, b+=size; a<b; a>>=1, b>>=1) {
      if (a&1) { L = q(L,pos[a]); a++; }
      if (b&1) { b--; R = q(R,pos[b]); }
    }
    return q(L,R);
  }
  void operate(ll i) { pos[i] = pos[i*2] + pos[i*2+1]; }
  ll q(ll x, ll y) { return x + y; }
};

// ----------------------------------------------------------------------
// ----------------------------------------------------------------------

struct query { ll t, x, y; };

int main() {
  ll n; cin >> n;
  query q[n]; rep(i,n) cin >> q[i].t >> q[i].x >> q[i].y;
  set<ll> num;
  rep(i,n) {
    if (q[i].t==0) num.insert(q[i].x);
    else { num.insert(q[i].x); num.insert(q[i].y); }
  }

  ll sz = num.size();
  vector<ll> nv; for (auto x: num) nv.push_back(x);
  SegTree st(sz+1);

  ll result = 0;
  rep(i,n) {
    if (q[i].t==0) {
      ll pos = lower_bound(all(nv),q[i].x) - nv.begin();
      st.update(pos,st[pos]+q[i].y);
    }
    else {
      ll pl = lower_bound(all(nv),q[i].x) - nv.begin();
      ll pr = lower_bound(all(nv),q[i].y) - nv.begin();
      result += st.query(pl,pr+1);
      // cout << result << endl;
    }
  }

  cout << result << endl;
  return 0;
}