public static void main ( String [ ] args ) {
  char [ ] str = "1023422" . toCharArray ( ) ;
  int len = str . length ;
  System . out . println ( getMaxEven ( str , len ) ) ;
}

public static void main ( String [ ] args ) { char [ ] str = "1023422" . toCharArray ( ) ; int len = str . length ; System . out . println ( getMaxEven ( str , len ) ) ; }
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