C11112331312111112111133133313331333133313331333133313113313231311313231   >>    C1111233131211111211113313331333133313331333133313331311331323131131323   <<    C11112331312111112111133133313331333133313331333133313113313231311313233   >>      C11112331312111112111133133313331333133313331333133313113313231311313232   >>