public static void main ( String [ ] args ) {
  sc = new FastIO ( System . in , System . out ) ;
  int n = sc . readInt ( ) , k = sc . readInt ( ) ;
  ArrayList < IntIntPair > list = new ArrayList < > ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    list . add ( IntIntPair . makePair ( sc . readInt ( ) , i + 1 ) ) ;
  }
  Collections . sort ( list ) ;
  List < Integer > indexes = new ArrayList < > ( ) ;
  for ( IntIntPair c : list ) {
    if ( c . first <= k ) {
      indexes . add ( c . second ) ;
      k -= c . first ;
    }
  }
  sc . println ( indexes . size ( ) ) ;
  for ( Integer c : indexes ) sc . printls ( c ) ;
  sc . close ( ) ;
}

public static void main ( String [ ] args ) { sc = new FastIO ( System . in , System . out ) ; int n = sc . readInt ( ) , k = sc . readInt ( ) ; ArrayList < IntIntPair > list = new ArrayList < > ( ) ; for ( int i = 0 ; i < n ; i ++ ) { list . add ( IntIntPair . makePair ( sc . readInt ( ) , i + 1 ) ) ; } Collections . sort ( list ) ; List < Integer > indexes = new ArrayList < > ( ) ; for ( IntIntPair c : list ) { if ( c . first <= k ) { indexes . add ( c . second ) ; k -= c . first ; } } sc . println ( indexes . size ( ) ) ; for ( Integer c : indexes ) sc . printls ( c ) ; sc . close ( ) ; }
(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 (expression_statement (assignment_expression left: (identifier) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)) (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))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) 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)))) (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: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) (binary_expression left: (identifier) right: (decimal_integer_literal))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (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)))) (enhanced_for_statement type: (type_identifier) name: (identifier) value: (identifier) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (field_access object: (identifier) field: (identifier)))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))))) (enhanced_for_statement type: (type_identifier) name: (identifier) value: (identifier) body: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))