public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  ArrayList < String > li = new ArrayList < > ( ) ;
  Set < String > s = new HashSet < > ( ) ;
  int t = sc . nextInt ( ) ;
  String [ ] str = new String [ t ] ;
  for ( int i = 0 ;
  i < t ;
  i ++ ) {
    str [ i ] = sc . next ( ) ;
  }
  for ( int i = str . length - 1 ;
  i >= 0 ;
  i -- ) {
    if ( ! ( s . contains ( str [ i ] ) ) ) {
      s . add ( str [ i ] ) ;
      li . add ( str [ i ] ) ;
    }
  }
  String [ ] ans = new String [ li . size ( ) ] ;
  int iterator = 0 ;
  for ( String i : li ) {
    ans [ iterator ++ ] = i ;
  }
  for ( String i : ans ) {
    System . out . println ( i ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; ArrayList < String > li = new ArrayList < > ( ) ; Set < String > s = new HashSet < > ( ) ; int t = sc . nextInt ( ) ; String [ ] str = new String [ t ] ; for ( int i = 0 ; i < t ; i ++ ) { str [ i ] = sc . next ( ) ; } for ( int i = str . length - 1 ; i >= 0 ; i -- ) { if ( ! ( s . contains ( str [ i ] ) ) ) { s . add ( str [ i ] ) ; li . add ( str [ i ] ) ; } } String [ ] ans = new String [ li . size ( ) ] ; int iterator = 0 ; for ( String i : li ) { ans [ iterator ++ ] = i ; } for ( String i : ans ) { System . out . println ( i ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (type_identifier) 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: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (unary_expression operand: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))))))) (local_variable_declaration type: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (type_identifier) dimensions: (dimensions_expr (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (enhanced_for_statement type: (type_identifier) name: (identifier) value: (identifier) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (update_expression (identifier))) right: (identifier))))) (enhanced_for_statement type: (type_identifier) name: (identifier) value: (identifier) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))))