#include <bits/stdc++.h>
#include <queue>
using namespace std;
struct bus{
	int price,times;
};
int n,prices,counting,starting;
bus all[100010];
int main(){
	starting,counting=1;
	cin>>n;
	for(int i=1;i<=n;i++){
		int a,b,c;
		bool flag=true;
		cin>>a>>b>>c;
		if(a==0){
			all[counting]={b,c};
			counting++;
			prices+=b;
			continue;
		}
		if(a==1){
			
			for(int j=starting;j<=counting;j++){
				if(b<=all[j].price && c-all[j].times<=45){
					starting++;
					flag=false;
					break;
				}
			}
		}
		if(flag) prices+=b;
	}
	cout<<prices;
	return 0;
}