public void testMethod5()
        {
            var Input_s  = "tryhard";
            var Input_k  = 4;
            var Expected = 1;
            var Actual   = MaximumNumberOfVowelsInASubstringOfGivenLength_1456.MaxVowels(Input_s, Input_k);

            Assert.AreEqual(Expected, Actual);
        }
        public void testMethod6()
        {
            var Input_s  = "weallloveyou";
            var Input_k  = 7;
            var Expected = 4;
            var Actual   = MaximumNumberOfVowelsInASubstringOfGivenLength_1456.MaxVowels(Input_s, Input_k);

            Assert.AreEqual(Expected, Actual);
        }
        public void testMethod3()
        {
            var Input_s  = "leetcode";
            var Input_k  = 3;
            var Expected = 2;
            var Actual   = MaximumNumberOfVowelsInASubstringOfGivenLength_1456.MaxVowels(Input_s, Input_k);

            Assert.AreEqual(Expected, Actual);
        }