public static String getShortColorsString(ArrayList<String> colors) {
        String colorDesc = "";
        for (String col : colors) {
            if (col.equalsIgnoreCase("White")) {
                colorDesc += "W";
            } else if (col.equalsIgnoreCase("Blue")) {
                colorDesc += "U";
            } else if (col.equalsIgnoreCase("Black")) {
                colorDesc += "B";
            } else if (col.equalsIgnoreCase("Red")) {
                colorDesc += "R";
            } else if (col.equalsIgnoreCase("Green")) {
                colorDesc += "G";
            } else if (col.equalsIgnoreCase("Colorless")) {
                colorDesc = "C";
            }
        }
        return colorDesc;
    }