关于c语言程序设计问题怎么解决

求大佬们帮忙解决第二个超市程序问题

这样写怎么样
#include<stdio.h>
int main()
{
double a,b,c,d,e,f,g,h,sum,money,data;
scanf("%lf,%lf,%lf,%lf,%lf,%lf,%lf,%lf",&a,&b,&c,&d,&e,&f,&g,&h);
sum = a+b+c+d+e+f+g+h;
if(sum <5)
{
money = 3.5a+5b+5.5c+4d+3e+4.5f+3g+5.3*h+6.5;
data = 6.5;
}
else if (sum < 20)
{
money = 3.5*a+5*b+5.5*c+4*d+3*e+4.5*f+3*g+5.3*h+13;
data = 13;
}
else if (sum >=20)
{
data = 13 + money * 2;
money = 3.5a+5b+5.5c+4d+3e+4.5f+3g+5.3*h+13 + money * 2;
}
printf("money %.2f\tdata %.2f\n",money,data);
return 0;
}