public static void main ( String [ ] args ) throws IOException {
  MyScanner sc = new MyScanner ( System . in ) ;
  PrintWriter out = new PrintWriter ( System . out ) ;
  int n = sc . nextInt ( ) , sum = 0 ;
  int [ ] a = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) sum += a [ i ] = sc . nextInt ( ) ;
  Arrays . sort ( a ) ;
  if ( sum % 10 == 0 ) for ( int i = 0 ;
  i < n ;
  i ++ ) if ( ( sum - a [ i ] ) % 10 != 0 ) {
    sum -= a [ i ] ;
    break ;
  }
  out . println ( sum % 10 == 0 ? 0 : sum ) ;
  out . flush ( ) ;
  out . close ( ) ;
}

public static void main ( String [ ] args ) throws IOException { MyScanner sc = new MyScanner ( System . in ) ; PrintWriter out = new PrintWriter ( System . out ) ; int n = sc . nextInt ( ) , sum = 0 ; int [ ] a = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) sum += a [ i ] = sc . nextInt ( ) ; Arrays . sort ( a ) ; if ( sum % 10 == 0 ) for ( int i = 0 ; i < n ; i ++ ) if ( ( sum - a [ i ] ) % 10 != 0 ) { sum -= a [ i ] ; break ; } out . println ( sum % 10 == 0 ? 0 : sum ) ; out . flush ( ) ; out . close ( ) ; }
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