C111123313121111121111331333133313331333131233133313113313232321333131221   >>    C11112331312111112111133133313331333133313123313331311331323232133313122   <<    C111123313121111121111331333133313331333131233133313113313232321333131223   >>      C111123313121111121111331333133313331333131233133313113313232321333131222   >>