Very Interesting Number Nine
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Two Numbers (10 a+b) and (10 x+y) For two digits numbers, numbers can be written in four ways like this (10 a+b) and (10 x+y) (10 a+b) and (10 y+x) (10 b+a) and (10 x+y) (10 b+a) and (10 y+x) Multi…
