C1111233131211111211113313331333133313232313331333133313332313331333132333111   >>    C111123313121111121111331333133313331323231333133313331333231333133313233311   <<    C1111233131211111211113313331333133313232313331333133313332313331333132333113   >>      C1111233131211111211113313331333133313232313331333133313332313331333132333112   >>