public static void main ( String [ ] args ) {
  Scanner scan = new Scanner ( System . in ) ;
  int m = scan . nextInt ( ) ;
  int [ ] sum = new int [ m + 1 ] ;
  int k = - 1 ;
  for ( int i = 0 ;
  i < m ;
  i ++ ) sum [ i + 1 ] = sum [ i ] + scan . nextInt ( ) ;
  int x = scan . nextInt ( ) ;
  int y = scan . nextInt ( ) ;
  for ( int i = 1 ;
  i < m + 1 ;
  i ++ ) {
    if ( sum [ i ] >= x && sum [ i ] <= y && sum [ m ] - sum [ i ] >= x && sum [ m ] - sum [ i ] <= y ) {
      k = i ;
      break ;
    }
  }
  System . out . println ( k + 1 ) ;
}

public static void main ( String [ ] args ) { Scanner scan = new Scanner ( System . in ) ; int m = scan . nextInt ( ) ; int [ ] sum = new int [ m + 1 ] ; int k = - 1 ; for ( int i = 0 ; i < m ; i ++ ) sum [ i + 1 ] = sum [ i ] + scan . nextInt ( ) ; int x = scan . nextInt ( ) ; int y = scan . nextInt ( ) ; for ( int i = 1 ; i < m + 1 ; i ++ ) { if ( sum [ i ] >= x && sum [ i ] <= y && sum [ m ] - sum [ i ] >= x && sum [ m ] - sum [ i ] <= y ) { k = i ; break ; } } System . out . println ( k + 1 ) ; }
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