#include<bits/stdc++.h>
using namespace std;
struct sub{
	long long time, price, used = 0;
}bus[100005];
long long n, h, t, cost;
int main() {
	scanf("%lld", &n);
	for(int i = 0;i < n;i++) {
		long long any, ti, pri;
		scanf("%lld%lld%lld", &any, &pri, &ti);
		if(any == 0) {
			cost += pri;
			bus[t].time = ti + 45;
			bus[t].price = pri;
			bus[t++].used = 0;
		} else if(any == 1){
			while(h < t && bus[h].time < ti)h++;
			bool found = false;
			for(int j = h;j < t;j++) {
				if(bus[j].price >= pri && bus[j].used == 0 && bus[h].time >= ti) {
					bus[j].used == 1;
					found = true;
					break;
				}
			}
			if(!found)cost += pri;
		}
	}
	printf("%lld", cost);
	return 0;
}