#include<bits/stdc++.h>
#define IOS ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int N=1e5+10;
const int INF=0x3f3f3f3f;
int n,cst,l,st=1;
struct take_way{
	int p,t;
	short wy;
}a[N];
struct tickit{
	int tm,pc;
	bool hd=0;
}c[N];
int main()
{
	IOS;
	cin>>n;
	for(int i=1;i<=n;++i)
	{
		cin>>a[i].wy>>a[i].p>>a[i].t;
		if(a[i].wy==0)
		{
			cst+=a[i].p;
			++l;
			c[l].tm=a[i].t+45;
			c[l].pc=a[i].p;
			//cout<<"坐地铁："<<a[i].p<<endl;
		}
		else
		{
			bool f1=0;
			for(int j=st;j<=l;++j)
			{
				if(a[i].p<=c[j].pc && a[i].t<=c[j].tm && c[j].hd==0)
				{
					f1=1;
					c[j].hd=1;
					//cout<<"不花费"<<endl; 
					break;
				}
				else if(a[i].t>c[j].tm)
				{
					st=j;
				}
			}
			if(!f1)
			{
				cst+=a[i].p;
				//cout<<"坐公交："<<a[i].p<<endl; 
			}
		}
	}
	cout<<cst;
    return 0;
}

1