C111123313121111121111331333133313331333131121133133313331333133313222212111   >>    C11112331312111112111133133313331333133313112113313331333133313331322221211   <<    C111123313121111121111331333133313331333131121133133313331333133313222212113   >>      C111123313121111121111331333133313331333131121133133313331333133313222212112   >>