C11112331312111112111133133313331333133313331333223313113313131   >>    C1111233131211111211113313331333133313331333133322331311331313   <<    C11112331312111112111133133313331333133313331333223313113313133   >>      C11112331312111112111133133313331333133313331333223313113313132   >>