#include<stdio.h>
struct employee{
    char name[50];
    int id;
    int type;
    union{
        int fullTimeSalary;
        float partTimeRate;
    }salary;
};
int main()
{
    int n;
    scanf("%d",&n);
    if(n<0){
        printf("-1");
        return 0;
    }
    struct employee emp[n];
    double totalSalary=0.0;
    for(int i=0;i<n;i++)
    {
        scanf("%s %d %d",emp[i].name,&emp[i],id,&emp[i].type);
        if(emp[i].type==1)
        {
            scanf("%d",&emp[i].salary.fullTimesalary);
            totalSalary+=emp[i].salary.fullTimeSalary;
        }
        else if(emp[i].type==2){
            scanf("%f",&emp[i].salary.partTimeRate);
            totalsalary+=emp[i].salary.partTimeRate;
        }
    }
    printf("%,21f",totalSalary);
    return 0;
}