C11111333133313232233133313331333132313331323321313331313132331   >>    C1111133313331323223313331333133313231333132332131333131313233   <<    C11111333133313232233133313331333132313331323321313331313132333   >>      C11111333133313232233133313331333132313331323321313331313132332   >>