C111123313121111121111331333133313331333131333133313331333133311233132212112111   >>    C11112331312111112111133133313331333133313133313331333133313331123313221211211   <<    C111123313121111121111331333133313331333131333133313331333133311233132212112113   >>      C111123313121111121111331333133313331333131333133313331333133311233132212112112   >>