C111123313121111121111331333132313331323112121111331333133112213221211   >>    C11112331312111112111133133313231333132311212111133133313311221322121   <<    C111123313121111121111331333132313331323112121111331333133112213221213   >>      C111123313121111121111331333132313331323112121111331333133112213221212   >>