C1111233131211111211113313331333133313331312331333133112323132322331333311   >>    C111123313121111121111331333133313331333131233133313311232313232233133331   <<    C1111233131211111211113313331333133313331312331333133112323132322331333313   >>      C1111233131211111211113313331333133313331312331333133112323132322331333312   >>