class StringSqueezable {
    static void main(String[] args) {
        String[] testStrings = [
                "",
                "\"If I were two-faced, would I be wearing this one?\" --- Abraham Lincoln ",
                "..1111111111111111111111111111111111111111111111111111111111111117777888",
                "I never give 'em hell, I just tell the truth, and they think it's hell. ",
                "                                                    --- Harry S Truman  ",
                "122333444455555666666777777788888888999999999",
                "The better the 4-wheel drive, the further you'll be from help when ya get stuck!",
                "headmistressship"
        ]

        String[] testChar = [" ", "-", "7", ".", " -r", "5", "e", "s"]
        for (int testNum = 0; testNum < testStrings.length; testNum++) {
            String s = testStrings[testNum]
            for (char c: testChar[testNum].toCharArray()) {
                String result = squeeze(s, c)
                System.out.printf("use: '%c'%nold: %2d <<<%s>>>%nnew: %2d <<<%s>>>%n%n", c, s.length(), s, result.length(), result)
            }
        }
    }

    private static String squeeze(String input, char include) {
        StringBuilder sb = new StringBuilder()
        for (int i = 0; i < input.length(); i++) {
            if (i == 0 || input.charAt(i - 1) != input.charAt(i) || (input.charAt(i - 1) == input.charAt(i) && input.charAt(i) != include)) {
                sb.append(input.charAt(i))
            }
        }
        return sb.toString()
    }
}