private void readAlgorithmNumber(String arg){
		switch(readInt(arg)){
		case 1: setUpAlgOne();
				break;
		case 2:	setUpAlgTwo();
				break;
		case 3: setUpAlgThree();
				break;
		case 4: setUpInverOver();
				break;
		default: System.out.println("Not a valid algorithm number");
				inputError();
		}
	}