C11112331312111112111133133313331333132212111133133313113313331333132322123331   >>    C1111233131211111211113313331333133313221211113313331311331333133313232212333   <<    C11112331312111112111133133313331333132212111133133313113313331333132322123333   >>      C11112331312111112111133133313331333132212111133133313113313331333132322123332   >>