C11112331312111112111133133313331333133313223313331323132312321   >>    C1111233131211111211113313331333133313331322331333132313231232   <<    C11112331312111112111133133313331333133313223313331323132312323   >>      C11112331312111112111133133313331333133313223313331323132312322   >>