C11111211113313112113313331333133313231311331333133311233132332231   >>    C1111121111331311211331333133313331323131133133313331123313233223   <<    C11111211113313112113313331333133313231311331333133311233132332233   >>      C11111211113313112113313331333133313231311331333133311233132332232   >>