public static void main ( String [ ] args ) throws IOException {
  BufferedReader r = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  String l = r . readLine ( ) ;
  String [ ] a = l . split ( " " ) ;
  int n = Integer . parseInt ( a [ 0 ] ) ;
  int v = Integer . parseInt ( a [ 1 ] ) ;
  l = r . readLine ( ) ;
  a = l . split ( " " ) ;
  float [ ] A = new float [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    A [ i ] = Float . parseFloat ( a [ i ] ) ;
  }
  l = r . readLine ( ) ;
  a = l . split ( " " ) ;
  float [ ] B = new float [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    B [ i ] = Float . parseFloat ( a [ i ] ) ;
  }
  float min = Float . MAX_VALUE ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    min = Math . min ( B [ i ] / A [ i ] , min ) ;
  }
  float ans = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    ans += A [ i ] * min ;
  }
  ans = Math . min ( ans , v ) ;
  System . out . println ( ans ) ;
}

public static void main ( String [ ] args ) throws IOException { BufferedReader r = new BufferedReader ( new InputStreamReader ( System . in ) ) ; String l = r . readLine ( ) ; String [ ] a = l . split ( " ▁ " ) ; int n = Integer . parseInt ( a [ 0 ] ) ; int v = Integer . parseInt ( a [ 1 ] ) ; l = r . readLine ( ) ; a = l . split ( " ▁ " ) ; float [ ] A = new float [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { A [ i ] = Float . parseFloat ( a [ i ] ) ; } l = r . readLine ( ) ; a = l . split ( " ▁ " ) ; float [ ] B = new float [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { B [ i ] = Float . parseFloat ( a [ i ] ) ; } float min = Float . MAX_VALUE ; for ( int i = 0 ; i < n ; i ++ ) { min = Math . min ( B [ i ] / A [ i ] , min ) ; } float ans = 0 ; for ( int i = 0 ; i < n ; i ++ ) { ans += A [ i ] * min ; } ans = Math . min ( ans , v ) ; System . out . println ( ans ) ; }
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