public static void main(String[] args) {
        String incoming = "AABBBBCCDDDDDMMVG";
        char[] chars = new char[incoming.length()];
        chars[0] = incoming.charAt(0);

        int border = 1;
        for (int i = 1; i < incoming.length(); i++) {
            if (incoming.charAt(i) != incoming.charAt(i - 1)) {
                if (i - border > 1) {
                } else {

                }
            } else {
                border++;
            }
        }

        System.out.println(new String(chars, 0, border));
    }