static int runTestCase(int casenum__) {
		switch (casenum__) {
		case 0: {
			String e = "55-50+40";
			int expected__ = -35;

			return verifyCase(casenum__, expected__, new LostParentheses().minResult(e));
		}
		case 1: {
			String e = "10+20+30+40";
			int expected__ = 100;

			return verifyCase(casenum__, expected__, new LostParentheses().minResult(e));
		}
		case 2: {
			String e = "00009-00009";
			int expected__ = 0;

			return verifyCase(casenum__, expected__, new LostParentheses().minResult(e));
		}

		// custom cases

		/*
		 * case 3: {
		 * String e = ;
		 * int expected__ = ;
		 * 
		 * return verifyCase(casenum__, expected__, new
		 * LostParentheses().minResult(e));
		 * }
		 */
		/*
		 * case 4: {
		 * String e = ;
		 * int expected__ = ;
		 * 
		 * return verifyCase(casenum__, expected__, new
		 * LostParentheses().minResult(e));
		 * }
		 */
		/*
		 * case 5: {
		 * String e = ;
		 * int expected__ = ;
		 * 
		 * return verifyCase(casenum__, expected__, new
		 * LostParentheses().minResult(e));
		 * }
		 */
		default:
			return -1;
		}
	}