C11111333133313232233133313331333133313231322321133131133131133122321   >>    C1111133313331323223313331333133313331323132232113313113313113312232   <<    C11111333133313232233133313331333133313231322321133131133131133122323   >>      C11111333133313232233133313331333133313231322321133131133131133122322   >>