CODE

#include <iostream>

using namespace std;

int main(void) {
  int n = 2;
  double ans = 0.0;
  while (n--) {
    int no, amount;
    double price;
    scanf("%d%d%lf", &no, &amount, &price);
    ans += amount * price;
  }
  printf("VALOR A PAGAR: R$ %.2lf", ans);
  return 0;
}