#include <stdio.h>

typedef struct pro_name{
    char name[50];
    int id;
    float price;
}mk;

int main(){
    int n,total;
    scanf("%d",&n);
    if(n<0){
        printf("invalid input");
        return 0;
    }
    for(int i =0;i<n;i++){
        scanf("%s %d %f",name,&id ,&price);
        total+=price;
    }
    printf(total);
    
    
    return 0;
}