private static void ChangeNvalue(){
		System.out.println();
		System.out.println("What Value of n do you want (must be between 3 and 14)?");
		sc = new Scanner(System.in);
		int opt = GetIntegerFromString(sc.nextLine());
		if(opt < 3 || opt > 14){
			System.out.println("Entry not valid. Value of n unchanged.");
			System.out.println();
		}
		else{
			Interface = new PermGroupInterface(opt,'C');
			System.out.println();
		}
	}