var sol = new Solution();

var cases = new (string input, string expected)[]
{
	("babad", "bab"),
	("cbbd", "bb"),
	("a", "a"),
	("ac", "a"),
	("forgeeksskeegfor", "geeksskeeg"),
	("abba", "abba"),
	("racecar", "racecar")
};

foreach (var (input, expected) in cases)
{
	var actual = sol.LongestPalindrome(input);
	Console.WriteLine($"{input} -> {actual} (expected: {expected})");
}