#include<stdio.h>
int main(){
	int menu;
printf("choose a menu: ");
scanf("%d",&menu);
    int b;
    struct book_dept{
    	char book_namber[10]
    	char book_name [100]
    	char name[100]
    	char year_book[100]
    	float price [100]
	}book[20];
for (b=0;b<menu;b++){
	printf("book namber: ");
	scanf("%s",&book[b].book_namber);
 
	printf("book name: ");
	scanf("%s",&book[b].book_name);
 
	printf("name: ");
	scanf("%s",&book[b].name);
 
	printf("year book: ");
	scanf("%s",&book[b].year_book);
 
	printf("price: ");
	scanf("%f",&book[b].price);
}
}

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