C11112331312111112111133133313331333133313112133313231333132323321   >>    C1111233131211111211113313331333133313331311213331323133313232332   <<    C11112331312111112111133133313331333133313112133313231333132323323   >>      C11112331312111112111133133313331333133313112133313231333132323322   >>