#include<bits/stdc++.h>
using namespace std;
const int N = 1e8;
int n,ans;
int b[N][3],p[N];
int main(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>b[i][1]>>b[i][2]>>b[i][3];
		if(b[i][1] == 0){
			p[b[i][3]] = b[i][2]; 
		}
		if(b[i][1] == 1){
			for(int j=45;j>0;j--){
				if(p[b[i][3]-j]>=b[i][2]){
					p[b[i][3]-j]=0;
					ans-=b[i][2];
					break;
				} 
			}	
		}
		ans+=b[i][2];
	}
	cout<<ans;
	return 0;
}

按理说N开1e5就够了，但N小了RE更多