public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  final int N = sc . nextInt ( ) ;
  int a = sc . nextInt ( ) - 1 ;
  BigInteger k = new BigInteger ( sc . next ( ) ) ;
  int [ ] b = new int [ N ] ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) b [ i ] = sc . nextInt ( ) - 1 ;
  sc . close ( ) ;
  int count = 1 ;
  int current = b [ a ] ;
  int [ ] dpCount = new int [ N ] ;
  int [ ] dpPos = new int [ N + 1 ] ;
  while ( dpCount [ current ] == 0 ) {
    dpCount [ current ] = count ;
    dpPos [ count ] = current ;
    current = b [ current ] ;
    count ++ ;
  }
  int startRoop = dpCount [ current ] ;
  BigInteger rk = k . subtract ( BigInteger . valueOf ( startRoop ) ) ;
  int ans = 0 ;
  if ( rk . max ( BigInteger . ZERO ) . equals ( BigInteger . ZERO ) ) {
    ans = dpPos [ k . intValue ( ) ] ;
  }
  else {
    ans = dpPos [ startRoop + rk . mod ( BigInteger . valueOf ( count - startRoop ) ) . intValue ( ) ] ;
  }
  System . out . println ( ans + 1 ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; final int N = sc . nextInt ( ) ; int a = sc . nextInt ( ) - 1 ; BigInteger k = new BigInteger ( sc . next ( ) ) ; int [ ] b = new int [ N ] ; for ( int i = 0 ; i < N ; i ++ ) b [ i ] = sc . nextInt ( ) - 1 ; sc . close ( ) ; int count = 1 ; int current = b [ a ] ; int [ ] dpCount = new int [ N ] ; int [ ] dpPos = new int [ N + 1 ] ; while ( dpCount [ current ] == 0 ) { dpCount [ current ] = count ; dpPos [ count ] = current ; current = b [ current ] ; count ++ ; } int startRoop = dpCount [ current ] ; BigInteger rk = k . subtract ( BigInteger . valueOf ( startRoop ) ) ; int ans = 0 ; if ( rk . max ( BigInteger . ZERO ) . equals ( BigInteger . ZERO ) ) { ans = dpPos [ k . intValue ( ) ] ; } else { ans = dpPos [ startRoop + rk . mod ( BigInteger . valueOf ( count - startRoop ) ) . intValue ( ) ] ; } System . out . println ( ans + 1 ) ; }
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declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (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)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: 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arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (if_statement condition: (parenthesized_expression (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))) name: (identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier))))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: 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