C11111333133313232233133313331333133313332322331331121111331311223112321   >>    C1111133313331323223313331333133313331333232233133112111133131122311232   <<    C11111333133313232233133313331333133313332322331331121111331311223112323   >>      C11111333133313232233133313331333133313332322331331121111331311223112322   >>