C11111333133313232233133313331333133313221333133313233313221323321   >>    C1111133313331323223313331333133313331322133313331323331322132332   <<    C11111333133313232233133313331333133313221333133313233313221323323   >>      C11111333133313232233133313331333133313221333133313233313221323322   >>