C111123313121111121111331333133313331333132233133313121111331323131111   >>    C11112331312111112111133133313331333133313223313331312111133132313111   <<    C111123313121111121111331333133313331333132233133313121111331323131113   >>      C111123313121111121111331333133313331333132233133313121111331323131112   >>