import java.lang.IllegalArgumentException;

public abstract class ErrorPascal implements Pascal {

	public abstract void printPascal(int n);
	public abstract int binom(int n, int k);


	public static void termsPascal(int n)
	{

		if(n <= 0 ){
			throw new IllegalArgumentException("Invalid values");
		}
	}

	public static void termsBinom(int n, int k)
	{
		if(n < k || k < 0 || n < 0)
		{
			throw new IllegalArgumentException("Invalid values");
		}

	}





}