Test passes if the two columns are the same, IGNORING the suffix.
甲甲
甲乙
丁丙
庚庚
庚癸
壬壬
壬癸
癸甲
乙乙乙
戊丙癸
壬壬壬
壬壬癸
壬癸戊
癸戊癸
癸己戊
甲庚壬癸
甲辛戊癸
戊辛己戊
己壬癸戊
庚庚壬癸
庚辛己丁
壬壬壬壬