C11111333133313232233133313331333133313331311233133313331211131   >>    C1111133313331323223313331333133313331333131123313331333121113   <<    C11111333133313232233133313331333133313331311233133313331211133   >>      C11111333133313232233133313331333133313331311233133313331211132   >>