public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  n = in . nextInt ( ) ;
  char [ ] s = in . next ( ) . toCharArray ( ) ;
  int [ ] wOnLeftCnt = new int [ n ] ;
  int [ ] eOnLeftCnt = new int [ n ] ;
  int [ ] wOnRightCnt = new int [ n ] ;
  int [ ] eOnRightCnt = new int [ n ] ;
  int wCnt = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    wOnLeftCnt [ i ] = wCnt ;
    if ( s [ i ] == 'W' ) {
      wCnt ++ ;
    }
  }
  int eCnt = 0 ;
  for ( int i = n - 1 ;
  i >= 0 ;
  i -- ) {
    eOnRightCnt [ i ] = eCnt ;
    if ( s [ i ] == 'E' ) {
      eCnt ++ ;
    }
  }
  int minTurned = Integer . MAX_VALUE ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( minTurned > wOnLeftCnt [ i ] + eOnRightCnt [ i ] ) {
      minTurned = wOnLeftCnt [ i ] + eOnRightCnt [ i ] ;
    }
    minTurned = Math . min ( minTurned , wOnLeftCnt [ i ] + eOnRightCnt [ i ] ) ;
  }
  System . out . println ( minTurned ) ;
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; n = in . nextInt ( ) ; char [ ] s = in . next ( ) . toCharArray ( ) ; int [ ] wOnLeftCnt = new int [ n ] ; int [ ] eOnLeftCnt = new int [ n ] ; int [ ] wOnRightCnt = new int [ n ] ; int [ ] eOnRightCnt = new int [ n ] ; int wCnt = 0 ; for ( int i = 0 ; i < n ; i ++ ) { wOnLeftCnt [ i ] = wCnt ; if ( s [ i ] == ' W ' ) { wCnt ++ ; } } int eCnt = 0 ; for ( int i = n - 1 ; i >= 0 ; i -- ) { eOnRightCnt [ i ] = eCnt ; if ( s [ i ] == ' E ' ) { eCnt ++ ; } } int minTurned = Integer . MAX_VALUE ; for ( int i = 0 ; i < n ; i ++ ) { if ( minTurned > wOnLeftCnt [ i ] + eOnRightCnt [ i ] ) { minTurned = wOnLeftCnt [ i ] + eOnRightCnt [ i ] ; } minTurned = Math . min ( minTurned , wOnLeftCnt [ i ] + eOnRightCnt [ i ] ) ; } System . out . println ( minTurned ) ; }
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(integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (block (expression_statement (update_expression (identifier))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (character_literal))) consequence: (block (expression_statement (update_expression (identifier))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (field_access object: (identifier) field: (identifier)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) 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(identifier))))))