public static void main ( String [ ] args ) {
  PrintWriter out = new PrintWriter ( System . out ) ;
  Scanner sc = new Scanner ( System . in ) ;
  int N = sc . nextInt ( ) ;
  int x = sc . nextInt ( ) ;
  if ( x == 1 || x == 2 * N - 1 ) {
    out . println ( "No" ) ;
    out . flush ( ) ;
    return ;
  }
  out . println ( "Yes" ) ;
  if ( N == 2 ) {
    for ( int i = 1 , n = 2 * N ;
    i < n ;
    ++ i ) {
      out . println ( i ) ;
    }
  }
  else {
    if ( x > N ) {
      for ( int i = N ;
      i < N * 2 ;
      ++ i ) {
        if ( i != x ) {
          out . println ( i ) ;
        }
      }
      out . println ( x ) ;
      for ( int i = 1 ;
      i < N ;
      ++ i ) {
        if ( i != x ) {
          out . println ( i ) ;
        }
      }
    }
    else {
      for ( int i = N + 1 ;
      i < N * 2 ;
      ++ i ) {
        if ( i != x ) {
          out . println ( i ) ;
        }
      }
      out . println ( x ) ;
      for ( int i = 1 ;
      i < N + 1 ;
      ++ i ) {
        if ( i != x ) {
          out . println ( i ) ;
        }
      }
    }
  }
  out . flush ( ) ;
}

public static void main ( String [ ] args ) { PrintWriter out = new PrintWriter ( System . out ) ; Scanner sc = new Scanner ( System . in ) ; int N = sc . nextInt ( ) ; int x = sc . nextInt ( ) ; if ( x == 1 || x == 2 * N - 1 ) { out . println ( " No " ) ; out . flush ( ) ; return ; } out . println ( " Yes " ) ; if ( N == 2 ) { for ( int i = 1 , n = 2 * N ; i < n ; ++ i ) { out . println ( i ) ; } } else { if ( x > N ) { for ( int i = N ; i < N * 2 ; ++ i ) { if ( i != x ) { out . println ( i ) ; } } out . println ( x ) ; for ( int i = 1 ; i < N ; ++ i ) { if ( i != x ) { out . println ( i ) ; } } } else { for ( int i = N + 1 ; i < N * 2 ; ++ i ) { if ( i != x ) { out . println ( i ) ; } } out . println ( x ) ; for ( int i = 1 ; i < N + 1 ; ++ i ) { if ( i != x ) { out . println ( i ) ; } } } } out . flush ( ) ; }
(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: (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: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (binary_expression left: (binary_expression left: (decimal_integer_literal) right: (identifier)) right: (decimal_integer_literal))))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) (return_statement))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (decimal_integer_literal) right: (identifier)))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) alternative: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (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 (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))))) alternative: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (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: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))