public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  char a = sc . next ( ) . charAt ( 0 ) ;
  char b = sc . next ( ) . charAt ( 0 ) ;
  int n = sc . nextInt ( ) ;
  int x = 0 , y = 0 ;
  if ( a == 'v' ) x = 1 ;
  else if ( a == '<' ) x = 2 ;
  else if ( a == '^' ) x = 3 ;
  else if ( a == '>' ) x = 4 ;
  if ( b == 'v' ) y = 1 ;
  else if ( b == '<' ) y = 2 ;
  else if ( b == '^' ) y = 3 ;
  else if ( b == '>' ) y = 4 ;
  int d = ( ( y - x ) + 4 ) % 4 ;
  if ( d == 0 || d == 2 ) {
    System . out . println ( "undefined" ) ;
  }
  else if ( d == n % 4 ) {
    System . out . println ( "cw" ) ;
  }
  else {
    System . out . println ( "ccw" ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; char a = sc . next ( ) . charAt ( 0 ) ; char b = sc . next ( ) . charAt ( 0 ) ; int n = sc . nextInt ( ) ; int x = 0 , y = 0 ; if ( a == ' v ' ) x = 1 ; else if ( a == ' < ' ) x = 2 ; else if ( a == ' ^ ' ) x = 3 ; else if ( a == ' > ' ) x = 4 ; if ( b == ' v ' ) y = 1 ; else if ( b == ' < ' ) y = 2 ; else if ( b == ' ^ ' ) y = 3 ; else if ( b == ' > ' ) y = 4 ; int d = ( ( y - x ) + 4 ) % 4 ; if ( d == 0 || d == 2 ) { System . out . println ( " undefined " ) ; } else if ( d == n % 4 ) { System . out . println ( " cw " ) ; } else { System . out . println ( " ccw " ) ; } }
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