#include<stdio.h>
#include<string.h>
#define MAX_EMPLOYEES 100
union Salary{
    float fullTimeSalary;
    float partTimeHourlyRate;
};
struct Employee
{
    char name[50];
    int id;
    int type;
    union Salary salary;
};
void calculateSalaries(struct Employee employees[], int n){
    float totalSalaries = 0.0;
    for(int i = 0; i < n; i++){
        if(employees[i].type ==1){
            totalSalaries += employees[i].salary.fullTimeSalary;
        }
        else if(employees[i].type ==2){
            totalSalaries += employees[i].salary.partTimeHourlyRate;
        }
    }
    printf("%.2f\n",totalSalaries);
}
int main()
{
    struct Employee employees[MAX_EMPLOYEES];
    int n;
    scanf("%f", &n);
    if(n<0)
    {
        printf("-1");
        return 0;
    }
    for(int i = 0; i < n; i++)
    {
        scanf("%s %d %d", employees[i].name,&employees[i].id,&employees[i].type);
        if(employees[i].type == 1)
        {
            scanf("%f", &employees[i].salary.fullTimeSalary);
            //total += emp.pay.fullSalary;
        }
        else if(employees[i].type == 2)
        {
            scanf("%f", &emp.pay.hourlyRate);
            total += employees[i].salary.partTimeHourlyRate;
        }
    }
    calaulateSalaries(employees,n);
    return 0;
}