class RegExpTest
{
	public static void main(String[] argv) 
	{
		if (argv[0].equals("m"))
		{
			boolean result = RegExp.match(argv[1], argv[2]);
			System.out.print(result);
		} else if (argv[0].equals("s"))
		{
			String result = RegExp.substitute(argv[1], argv[2], argv[3]);
			System.out.print(result);
		}
	}
}