C111123313121111121111331333133313331323232133313331333132233131133132322121   >>    C11112331312111112111133133313331333132323213331333133313223313113313232212   <<    C111123313121111121111331333133313331323232133313331333132233131133132322123   >>      C111123313121111121111331333133313331323232133313331333132233131133132322122   >>