C111123313121111121111331333133313331323221211113313113313331322331221   >>    C11112331312111112111133133313331333132322121111331311331333132233122   <<    C111123313121111121111331333133313331323221211113313113313331322331223   >>      C111123313121111121111331333133313331323221211113313113313331322331222   >>