#include<stdio.h>
struct cart
{
  char name[20];
  int id;
  float price;
}
int main()
{
    int size,ind,total;
    scanf("%d",&size);
    if(size<0)
    {
        printf("Invalid input");
        return 0;

    }
    struct cart c1[size];
    for(ind=0;ind<size;ind++)
    {
        scanf("%s",c1[ind].name);
        scanf("%d",&c1[ind].id);
        scanf("%f",&c1[ind].price);
    }
    for(ind=0;ind<size;ind++)
    {
    total+=c1[ind].price;
    }
    printf("%f",total);