public static void main ( String [ ] args ) {
  Scanner scanner = new Scanner ( System . in ) ;
  int n = scanner . nextInt ( ) ;
  scanner . close ( ) ;
  ArrayList < Integer > tribonach = new ArrayList < Integer > ( ) ;
  tribonach . add ( 0 ) ;
  tribonach . add ( 0 ) ;
  tribonach . add ( 1 ) ;
  for ( int i = 3 ;
  i < n ;
  i ++ ) {
    int a = ( tribonach . get ( i - 1 ) + tribonach . get ( i - 2 ) + tribonach . get ( i - 3 ) ) % 10007 ;
    tribonach . add ( a ) ;
  }
  int an = tribonach . get ( n - 1 ) ;
  System . out . println ( an ) ;
}

public static void main ( String [ ] args ) { Scanner scanner = new Scanner ( System . in ) ; int n = scanner . nextInt ( ) ; scanner . close ( ) ; ArrayList < Integer > tribonach = new ArrayList < Integer > ( ) ; tribonach . add ( 0 ) ; tribonach . add ( 0 ) ; tribonach . add ( 1 ) ; for ( int i = 3 ; i < n ; i ++ ) { int a = ( tribonach . get ( i - 1 ) + tribonach . get ( i - 2 ) + tribonach . get ( i - 3 ) ) % 10007 ; tribonach . add ( a ) ; } int an = tribonach . get ( n - 1 ) ; System . out . println ( an ) ; }
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