private static void solve ( ConsoleScanner cin , PrintWriter cout ) {
  int n = cin . nextInt ( ) ;
  int [ ] a = new int [ n ] ;
  for ( int i = 0 ;
  i < a . length ;
  i ++ ) a [ i ] = cin . nextInt ( ) ;
  long start = now ( ) ;
  long ans = solve ( n , a ) ;
  cout . println ( ans ) ;
  trace ( "elapsed" , now ( ) - start ) ;
}

private static void solve ( ConsoleScanner cin , PrintWriter cout ) { int n = cin . nextInt ( ) ; int [ ] a = new int [ n ] ; for ( int i = 0 ; i < a . length ; i ++ ) a [ i ] = cin . nextInt ( ) ; long start = now ( ) ; long ans = solve ( n , a ) ; cout . println ( ans ) ; trace ( " elapsed " , now ( ) - start ) ; }
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