C11111333133313232233133313331333133313332313331211113313123232233132333231   >>    C1111133313331323223313331333133313331333231333121111331312323223313233323   <<    C11111333133313232233133313331333133313332313331211113313123232233132333233   >>      C11111333133313232233133313331333133313332313331211113313123232233132333232   >>