public void TestMethod5()
        {
            var Input    = "ab123";
            var Expected = "1a2b3";
            var Actual   = ReformatTheString_1417.Reformat(Input);

            Assert.AreEqual(Expected, Actual);
        }
        public void TestMethod4()
        {
            var Input    = "covid2019";
            var Expected = "c2o0v1i9d";
            var Actual   = ReformatTheString_1417.Reformat(Input);

            Assert.AreEqual(Expected, Actual);
        }
        public void TestMethod2()
        {
            var Input    = "leetcode";
            var Expected = "";
            var Actual   = ReformatTheString_1417.Reformat(Input);

            Assert.AreEqual(Expected, Actual);
        }
        public void TestMethod3()
        {
            var Input    = "1229857369";
            var Expected = "";
            var Actual   = ReformatTheString_1417.Reformat(Input);

            Assert.AreEqual(Expected, Actual);
        }
        public void TestMethod1()
        {
            var Input    = "a0b1c2";
            var Expected = "0a1b2c";
            var Actual   = ReformatTheString_1417.Reformat(Input);

            Assert.AreEqual(Expected, Actual);
        }