public static void main ( String args [ ] ) {
  try ( Scanner sc = new Scanner ( System . in ) ) {
    int N = sc . nextInt ( ) ;
    long [ ] A = new long [ N ] ;
    long [ ] B = new long [ N ] ;
    for ( int i = 0 ;
    i < N ;
    i ++ ) {
      A [ i ] = i * 10001L + 1 ;
      B [ N - i - 1 ] = i * 10001L + 1 ;
    }
    for ( int i = 0 ;
    i < N ;
    i ++ ) {
      int p = sc . nextInt ( ) ;
      p -- ;
      A [ p ] += i / 2 ;
      B [ p ] += i - i / 2 ;
    }
    for ( int i = 0 ;
    i < N ;
    i ++ ) {
      System . out . print ( A [ i ] ) ;
      if ( i == N - 1 ) {
        System . out . print ( "\n" ) ;
      }
      else {
        System . out . print ( " " ) ;
      }
    }
    for ( int i = 0 ;
    i < N ;
    i ++ ) {
      System . out . print ( B [ i ] ) ;
      if ( i == N - 1 ) {
        System . out . print ( "\n" ) ;
      }
      else {
        System . out . print ( " " ) ;
      }
    }
  }
}

public static void main ( String args [ ] ) { try ( Scanner sc = new Scanner ( System . in ) ) { int N = sc . nextInt ( ) ; long [ ] A = new long [ N ] ; long [ ] B = new long [ N ] ; for ( int i = 0 ; i < N ; i ++ ) { A [ i ] = i * 10001L + 1 ; B [ N - i - 1 ] = i * 10001L + 1 ; } for ( int i = 0 ; i < N ; i ++ ) { int p = sc . nextInt ( ) ; p -- ; A [ p ] += i / 2 ; B [ p ] += i - i / 2 ; } for ( int i = 0 ; i < N ; i ++ ) { System . out . print ( A [ i ] ) ; if ( i == N - 1 ) { System . out . print ( " \n " ) ; } else { System . out . print ( " ▁ " ) ; } } for ( int i = 0 ; i < N ; i ++ ) { System . out . print ( B [ i ] ) ; if ( i == N - 1 ) { System . out . print ( " \n " ) ; } else { System . out . print ( " ▁ " ) ; } } } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier) dimensions: (dimensions))) body: (block (try_with_resources_statement resources: (resource_specification (resource type: (type_identifier) name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) body: (block (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: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (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: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal))) right: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)))))) (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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))))))) (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 (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))))))) (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 (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) alternative: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))))))))