A is a natural number .if A subtracts 1,3,5...(some continous odd numbers )until it cannot subtract more ,the result will be 29 ;if A subtracts 2,4,6...(some continous even numbers )until it cannot subtract more ,the result will be 13 .so what is A 紧急!
问题描述：
A is a natural number .if A subtracts 1,3,5...(some continous odd numbers )until it cannot subtract more ,the result will be 29 ;if A subtracts 2,4,6...(some continous even numbers )until it cannot subtract more ,the result will be 13 .so what is A 紧急!
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