C11112331312111112111133133313121111331323132333132233132322132313111   >>    C1111233131211111211113313331312111133132313233313223313232213231311   <<    C11112331312111112111133133313121111331323132333132233132322132313113   >>      C11112331312111112111133133313121111331323132333132233132322132313112   >>