#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>

using namespace std;

#define int long long
#define rep(i,n) for(int i = 0; i < (n); i++)
#define INF ((long long)1e18)
#define EPS (1e-5)
#define MOD ((int)1e9+7)
#define endl "\n"

#define yn(f) ((f)?"Yes":"No")
#define YN(f) ((f)?"YES":"NO")

vector<int> bit;

int sum(int i){
	int s = 0;
	while(i > 0){
		s += bit[i];
		i -= i & -i;
	}
	return s;
}

void add(int i,int x){
	while(i <= bit.size()){
		bit[i] += x;
		i += i & -i;
	}
}

signed main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	cout<<fixed<<setprecision(10);
	
	int n, ans = 0;
	vector<int> s, a, b, hoge;
	
	cin>>n;
	
	s.resize(n);
	a.resize(n);
	b.resize(n);
	
	for(int i = 0; i < n; i++){
		cin>>s[i]>>a[i]>>b[i];
		
		if(s[i]){
			hoge.push_back(a[i]);
			hoge.push_back(b[i]);
		} else {
			hoge.push_back(a[i]);
		}
	}
	
	sort(hoge.begin(),hoge.end());
	
	hoge.erase(unique(hoge.begin(),hoge.end()),hoge.end());
	
	bit.resize(hoge.size()+1);
	
	for(int i = 0; i < n; i++){
		if(s[i]){
			int tempa = lower_bound(hoge.begin(),hoge.end(),a[i]) - hoge.begin()+1;
			int tempb = lower_bound(hoge.begin(),hoge.end(),b[i]) - hoge.begin()+1;
			ans += sum(tempb)-sum(tempa-1);
		} else {
			int temp = lower_bound(hoge.begin(),hoge.end(),a[i]) - hoge.begin()+1;
			
			add(temp,b[i]);
		}
	}
	
	cout<<ans<<endl;
	
	return 0;
}