public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int numberOfPeople = sc . nextInt ( ) ;
  char [ ] peopleDirections = sc . next ( ) . toCharArray ( ) ;
  int [ ] east = new int [ numberOfPeople ] ;
  int [ ] west = new int [ numberOfPeople ] ;
  for ( int i = 0 ;
  i < numberOfPeople ;
  i ++ ) {
    if ( peopleDirections [ i ] == 'E' ) {
      east [ i ] = 1 ;
    }
    else {
      west [ i ] = 1 ;
    }
  }
  for ( int i = 1 ;
  i < numberOfPeople ;
  i ++ ) {
    east [ i ] += east [ i - 1 ] ;
    west [ i ] += west [ i - 1 ] ;
  }
  int minimumNumberOfPeopleToChangeDirection = numberOfPeople ;
  for ( int i = 0 ;
  i < numberOfPeople ;
  i ++ ) {
    int countOfEastAtRightSide = east [ numberOfPeople - 1 ] - east [ i ] ;
    int countOfWestAtLeftSide = i == 0 ? 0 : west [ i - 1 ] ;
    int totalCount = countOfEastAtRightSide + countOfWestAtLeftSide ;
    if ( minimumNumberOfPeopleToChangeDirection > totalCount ) {
      minimumNumberOfPeopleToChangeDirection = totalCount ;
    }
  }
  System . out . println ( minimumNumberOfPeopleToChangeDirection ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int numberOfPeople = sc . nextInt ( ) ; char [ ] peopleDirections = sc . next ( ) . toCharArray ( ) ; int [ ] east = new int [ numberOfPeople ] ; int [ ] west = new int [ numberOfPeople ] ; for ( int i = 0 ; i < numberOfPeople ; i ++ ) { if ( peopleDirections [ i ] == ' E ' ) { east [ i ] = 1 ; } else { west [ i ] = 1 ; } } for ( int i = 1 ; i < numberOfPeople ; i ++ ) { east [ i ] += east [ i - 1 ] ; west [ i ] += west [ i - 1 ] ; } int minimumNumberOfPeopleToChangeDirection = numberOfPeople ; for ( int i = 0 ; i < numberOfPeople ; i ++ ) { int countOfEastAtRightSide = east [ numberOfPeople - 1 ] - east [ i ] ; int countOfWestAtLeftSide = i == 0 ? 0 : west [ i - 1 ] ; int totalCount = countOfEastAtRightSide + countOfWestAtLeftSide ; if ( minimumNumberOfPeopleToChangeDirection > totalCount ) { minimumNumberOfPeopleToChangeDirection = totalCount ; } } System . out . println ( minimumNumberOfPeopleToChangeDirection ) ; }
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