int main()
{
	int size_a, size_b;
	double a = 0, b = 0;
	int intresult = 0;
	double dubresult = 0;
	char operation;
	char in_type[15];
	int current = 0;
	int status;
	char * la;
	char * lb;

	printf("\nWrite the type of input data ");
	scanf("%6s", in_type);

	//
	if (!strcmp(in_type, "string"))
	{
		current = -1;
		printf("Enter max size of line a  ");
		scanf("%d", &size_a);

		la = new char[size_a];
		printf("Enter line a = ");
		scanf("%s", la);

		printf("\nEnter the operation ");
		fflush(stdin);
		operation = getchar();

		printf("Enter max size of line b  ");
		scanf("%d", &size_b);

		lb = new char[size_b];
		printf("\nEnter line b = ");
		scanf("%s", lb);

		check_string_operation(in_type,operation, la, lb, size_a, size_b);
		getch();
		return 0;
	}
	else
	{
		printf("Enter a = ");
		status = scanf("%lf", &a);

		printf("\nEnter the operation ");
		fflush(stdin);
		operation = getchar();
		//if (operation == 10)
		//	operation = getchar();

		//
		printf("\nEnter b = ");
		scanf("%lf", &b);
	}

	switch (operation)
	{
	case '+':
	{
		current = 0;
		check_casual_operation(in_type, current, dubresult, intresult, a, b);
		break;
	}
	case '*':
	{
		current = 1;
		check_casual_operation(in_type, current, dubresult, intresult, a, b);
		break;
	}
	case '-':
	{
		current = 2;
		check_casual_operation(in_type, current, dubresult, intresult, a, b);
		break;
	}
	case '/':
	{
		current = 3;
		check_div_operation(in_type, current, dubresult, intresult, a, b);
		break;
	}

	}

	getch();
	return 0;
}