C11112331312111112111133133313331333132112312111113331333132313231322321   >>    C1111233131211111211113313331333133313211231211111333133313231323132232   <<    C11112331312111112111133133313331333132112312111113331333132313231322323   >>      C11112331312111112111133133313331333132112312111113331333132313231322322   >>