a、b为自然数，且56a+392b为完全平方 ，a+b的最小值是多少？

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31555' and id < 2527911 and id<>'2527911' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31555' and id > 2527911 and id<>'2527911' order by id asc limit 5