#include <stdio.h>

int main()
{
	double a;
	char loaiphong;
	printf("So ngay thue phong cua ban la:");
	scanf_s("%lf" ,&a);
	printf("Loai phong ban muon thue la:");
	scanf_s("%s", &loaiphong);
	if (a <= 12 && a > 0)
	{
		if (loaiphong =='A')
			printf("Tien thue phong cua ban la:%lf", 450000 * a);
		if (loaiphong =='B')
			printf("Tien thue phong cua ban la:%lf", 350000 * a);
		if (loaiphong == 'C')
			printf("Tien thue phong cua ban la:%lf", 250000 * a);
		else printf("Vui long nhap lai");
	}
		
	if (a > 12)
	{
		if (loaiphong=='A')
			printf("Tien thue phong cua ban la:%lf", 450000 * a - 450000 * a * 0.1);
		if (loaiphong =='B')
			printf("Tien thue phong cua ban la:%lf", 350000 * a - 350000 * a * 0.08);
		if (loaiphong == 'C')
			printf("Tien thue phong cua ban la:%lf", 250000 * a - 250000 * a * 0.08);
		else printf("Vui long nhao lai");
	}
	return 0;
}