public IrcModeChange(String modes) {
        char sign = ' ';
        plus = new ArrayList<>();
        minus = new ArrayList<>();

        for (char c : modes.toCharArray()) {
            if (c == '+' || c == '-') {
                sign = c;
                continue;
            }

            if (sign == '+')
                plus.add(c);
            else if (sign == '-')
                minus.add(c);
        }
    }