C11112331312111112111133133313331333132313331323133313331333133313113313132131   >>    C1111233131211111211113313331333133313231333132313331333133313331311331313213   <<    C11112331312111112111133133313331333132313331323133313331333133313113313132133   >>      C11112331312111112111133133313331333132313331323133313331333133313113313132132   >>