C111123313121111121111331333133313331321123121133132313331333132321133211   >>    C11112331312111112111133133313331333132112312113313231333133313232113321   <<    C111123313121111121111331333133313331321123121133132313331333132321133213   >>      C111123313121111121111331333133313331321123121133132313331333132321133212   >>