public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  final int mod = ( ( int ) 1e9 ) + 7 ;
  int n = Integer . parseInt ( sc . next ( ) ) ;
  int [ ] a = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    a [ i ] = Integer . parseInt ( sc . next ( ) ) ;
  }
  long k = 1 ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    k *= i ;
    k %= mod ;
  }
  long [ ] r = new long [ n + 1 ] ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    r [ i ] = ( r [ i - 1 ] + mod_pow ( i , mod - 2 , mod ) ) % mod ;
  }
  long res = 0L ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    res += ( r [ i + 1 ] + r [ n - i ] - r [ 1 ] ) * a [ i ] ;
    res %= mod ;
  }
  System . out . println ( res * k % mod ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; final int mod = ( ( int ) 1e9 ) + 7 ; int n = Integer . parseInt ( sc . next ( ) ) ; int [ ] a = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { a [ i ] = Integer . parseInt ( sc . next ( ) ) ; } long k = 1 ; for ( int i = 1 ; i <= n ; i ++ ) { k *= i ; k %= mod ; } long [ ] r = new long [ n + 1 ] ; for ( int i = 1 ; i <= n ; i ++ ) { r [ i ] = ( r [ i - 1 ] + mod_pow ( i , mod - 2 , mod ) ) % mod ; } long res = 0L ; for ( int i = 0 ; i < n ; i ++ ) { res += ( r [ i + 1 ] + r [ n - i ] - r [ 1 ] ) * a [ i ] ; res %= mod ; } System . out . println ( res * k % mod ) ; }
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