C1111233131211111211113313331333133313331312331333131133132323213331323133311   >>    C111123313121111121111331333133313331333131233133313113313232321333132313331   <<    C1111233131211111211113313331333133313331312331333131133132323213331323133313   >>      C1111233131211111211113313331333133313331312331333131133132323213331323133312   >>