#include<stdio.h>
typedef struct order{
    char name[50];
    int id;
    float price;
}od;
int main(){
    int n;
    scanf("%d",&n);
    if(n<0){
        printf("Invalid input");
        return 0;
    }
    od arr[n];
    for(int i=0;i<n;i++){
        scanf("%s\n %d\n %f",arr[i].name,&arr[i].id,&arr[i].price);
    }
    int sum=0;
    sum+=arr[i].price;
    printf("%f",sum);
}