C111123313121111121111331333133313331313331323113313132313221211   >>    C11112331312111112111133133313331333131333132311331313231322121   <<    C111123313121111121111331333133313331313331323113313132313221213   >>      C111123313121111121111331333133313331313331323113313132313221212   >>