#include <stdio.h>
struct product{
    char name[20];
    int id;
    float price;
};
int main(){
    int n,i;
    scanf("%d",&n);
    if(n<0){
        printf("Invalid input");
        return 0;
    }
    struct product a[n];
    float total=0;
    for(i=0;i<n;i++){
        scanf("%s\n %d\n %f\n",a[i].name,&a[i].id,&a[i].price);
        if(a[i].name==)
        total+=a[i].price;
    }
    printf("%.2f",total);
    return 0;
}