#include<stdio.h>
int main(){
	int tax, num_milk, num_bread, num_chicken;
	float price_milk, price_chicken, price_bread, tax_decimal, total, ave;

	printf("enter tax, and number of items in each category: milk, bread, chicken\n");
	scanf("%d%d%d%d", &tax, &num_milk, &num_bread,&num_chicken);
	printf("enter prices for each category: milk, bread, chicken\n");
	scanf("%f%f%f", &price_milk, &price_bread, &price_chicken);

	tax_decimal=(float)(tax)/100;
	total=price_milk*num_milk+price_bread*num_bread+num_chicken*price_chicken*(1+tax_decimal);
	ave=total/(num_milk+num_bread+num_chicken);

	printf("total price %f ave per item %f\n", total,ave);
	return 0;;
}