static int runTestCase(int casenum) {
		switch (casenum) {
		case 0: {
			String[] choices = { "NYY", "NNY", "NNN" };
			int expected__ = 2;

			return verifyCase(casenum, expected__, new GogoXReimuHakurai().solve(choices));
		}
		case 1: {
			String[] choices = { "NYNY", "NNYY", "NNNY", "NNNN" };
			int expected__ = 3;

			return verifyCase(casenum, expected__, new GogoXReimuHakurai().solve(choices));
		}
		case 2: {
			String[] choices = { "NNY", "NNY", "NNN" };
			int expected__ = 1;

			return verifyCase(casenum, expected__, new GogoXReimuHakurai().solve(choices));
		}
		case 3: {
			String[] choices = { "NN", "NN" };
			int expected__ = 0;

			return verifyCase(casenum, expected__, new GogoXReimuHakurai().solve(choices));
		}

		// custom cases

		/*
		 * case 4: {
		 * String[] choices = ;
		 * int expected__ = ;
		 *
		 * return verifyCase(casenum, expected__, new
		 * GogoXReimuHakurai().solve(choices));
		 * }
		 */
		/*
		 * case 5: {
		 * String[] choices = ;
		 * int expected__ = ;
		 *
		 * return verifyCase(casenum, expected__, new
		 * GogoXReimuHakurai().solve(choices));
		 * }
		 */
		/*
		 * case 6: {
		 * String[] choices = ;
		 * int expected__ = ;
		 *
		 * return verifyCase(casenum, expected__, new
		 * GogoXReimuHakurai().solve(choices));
		 * }
		 */
		default:
			return -1;
		}
	}