public static void main ( String args [ ] ) {
  Scanner scan = new Scanner ( System . in ) ;
  int c = Integer . parseInt ( scan . next ( ) ) ;
  scan . nextLine ( ) ;
  double yourfortune = 0 ;
  double btcprice = 380000.0 ;
  for ( int i = 0 ;
  i < c ;
  i ++ ) {
    double a = 0 ;
    a = Double . parseDouble ( scan . next ( ) ) ;
    String b = null ;
    if ( scan . hasNext ( ) ) {
      b = scan . next ( ) ;
    }
    else {
      b = "" ;
    }
    if ( b . equals ( "JPY" ) ) {
      yourfortune += a ;
    }
    else {
      yourfortune += ( a * btcprice ) ;
    }
  }
  String ans = null ;
  PrintWriter out = new PrintWriter ( System . out ) ;
  out . println ( yourfortune ) ;
  out . flush ( ) ;
  scan . close ( ) ;
}

public static void main ( String args [ ] ) { Scanner scan = new Scanner ( System . in ) ; int c = Integer . parseInt ( scan . next ( ) ) ; scan . nextLine ( ) ; double yourfortune = 0 ; double btcprice = 380000.0 ; for ( int i = 0 ; i < c ; i ++ ) { double a = 0 ; a = Double . parseDouble ( scan . next ( ) ) ; String b = null ; if ( scan . hasNext ( ) ) { b = scan . next ( ) ; } else { b = " " ; } if ( b . equals ( " JPY " ) ) { yourfortune += a ; } else { yourfortune += ( a * btcprice ) ; } } String ans = null ; PrintWriter out = new PrintWriter ( System . out ) ; out . println ( yourfortune ) ; out . flush ( ) ; scan . close ( ) ; }
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