#include <iostream>
#include <cstdio>
#include <iomanip>
#include <cstring>
using namespace std;
int pay[50001][13];
double income(int s)
{
	double w=s;
	if (w<=4000)
		w-=800;
	else
		w*=0.8;
	if (w<=0)
		return 0;
	else if (w<=20000)
		return w*0.2;
	else if (w<=50000)
		return 4000+(w-20000)*0.3;
	else
		return 4000+9000+(w-50000)*0.4;
}
double pay1(int s)
{
	double w=s-800;
	if (w<=0)
		return 0;
	else if (w<=500)
		return w*0.05;
	else if (w<=2000)
		return 25+(w-500)*0.1;
	else if (w<=5000)
		return 25+150+(w-2000)*0.15;
	else if (w<=20000)
		return 25+150+450+(w-5000)*0.2;
	else if (w<=40000)
		return 25+150+450+3000+(w-20000)*0.25;
	else if (w<=60000)
		return 25+150+450+3000+5000+(w-40000)*0.3;
	else if (w<=80000)
		return 25+150+450+3000+5000+6000+(w-60000)*0.35;
	else if (w<=100000)
		return 25+150+450+3000+5000+6000+7000+(w-80000)*0.40;
	else
		return 25+150+450+3000+5000+6000+7000+8000+(w-100000)*0.45;
}
 
int main()
{
	freopen ("personaltax.in","r",stdin);
	freopen ("personaltax.out","w",stdout);
	int m;
	int i,j;
	double ans=0;
	string way,f;
	int num,mon,y;
	cin>>m;
	while(m)
	{
		cin>>way;
		if(way=="#") break;
		else
		{
			cin>>num>>y>>f>>mon;
			if(way=="INCOME") ans+=income(mon);
			if(way=="PAY") 	pay[num][y]+=mon;
		}
	}
	for (i=1;i<=m;i++)
	{
		for (j=1;j<=12;j++)
			ans+=pay1(pay[i][j]);
	}
	printf("%.2lf",ans);
	return 0;
}