P5661

#include<iostream>
using namespace std;
struct bitch{
	long long price,time;
	bool use=false;
}dick[10000000];
struct fuck{
	long long traffic,price,time;
}shit[10000000];
int fastRead(){
	int x=0;
	char ch=getchar();
	while(ch<'0'){
		ch=getchar();
	}
	while(ch>='0'){
		x=(x<<1)+(x<<3)+(ch-'0');
		ch=getchar();
	}
	return x;
}
void fastWrite(int x){
	if(x>9){
		fastWrite(x/10);
	}
	putchar(x%10+'0');
}
int main(){
	long long n,ans=0,k=0;
	n=fastRead();
	for(int i=0;i<n;i++){
		shit[i].traffic=fastRead();
		shit[i].price=fastRead();
		shit[i].time=fastRead();
		if(shit[i].traffic==0){
			dick[k].price=shit[i].price;
			dick[k].time=shit[i].time;
			k++;
		}
	}
	for(int i=0;i<n;i++){
		if(shit[i].traffic==1&&i>0){
			long long result=0;
			for(int j=0;j<i;j++){
				if(result>=shit[i].price){
					break;
				}
				else if(0<shit[i].time-dick[j].time&&shit[i].time-dick[j].time<=45&&dick[j].use==0){
					result=result+dick[j].price;
					dick[j].use=1;
				}
				else if(j==i-1){
					ans=ans+shit[i].price;
				}		
			}
		}
		else{
			ans=ans+shit[i].price;
		}
	}
	fastWrite(ans);
	return 0;
}