C111123313121111121111331333133313331323231333133313331313332212132313221   >>    C11112331312111112111133133313331333132323133313331333131333221213231322   <<    C111123313121111121111331333133313331323231333133313331313332212132313223   >>      C111123313121111121111331333133313331323231333133313331313332212132313222   >>