#include<iostream>
using namespace std;

int n,cnt,front = 1,money;
bool how_go,flag;
long long t,sumny,last;
struct Edeg{
	long long ti;
	long long ms;
}cheaps[100005];
int main(){
	cin >> n;
	for(int i=1;i<=n;i++){
		cin >> how_go >> money >> t;
		if(!how_go){
			sumny += money;
			cheaps[++cnt].ti = t;
			cheaps[cnt].ms = money;
		}else{
			flag = false;
			for(int j=front;j<=cnt;j++){
				if(cheaps[j].ti == -1){
					if(front == j-1){
						front++;
					}
					continue;
				}
				if((t-cheaps[j].ti) <= 45 && cheaps[j].ms >= money){
					cheaps[j].ti = -1;
					flag = true;
					break;
				}else{
					if((t-cheaps[j].ti) > 45){
						front++;
					}
				}
			}
			if(!flag){
				sumny+=money;
			}
		}
	}
	cout << sumny;
	return 0;
}