C11112331312111112111133133313331333133313331333133313231323123131   >>    C1111233131211111211113313331333133313331333133313331323132312313   <<    C11112331312111112111133133313331333133313331333133313231323123133   >>      C11112331312111112111133133313331333133313331333133313231323123132   >>