public static void main ( String args [ ] ) {
  Scanner scan = new Scanner ( System . in ) ;
  int a = scan . nextInt ( ) ;
  int b = scan . nextInt ( ) ;
  HashSet < Integer > h = new HashSet < Integer > ( ) ;
  for ( int j = 0 ;
  Math . pow ( 2 , j ) <= b ;
  j ++ ) {
    if ( Math . pow ( 2 , j ) >= a && Math . pow ( 2 , j ) <= b ) {
      h . add ( ( int ) Math . pow ( 2 , j ) ) ;
    }
    if ( Math . pow ( 3 , j ) >= a && Math . pow ( 3 , j ) <= b ) {
      h . add ( ( int ) Math . pow ( 3 , j ) ) ;
    }
  }
  for ( int i = 0 ;
  Math . pow ( 2 , i ) <= b ;
  i ++ ) {
    for ( int j = 0 ;
    Math . pow ( 3 , j ) <= b ;
    j ++ ) {
      if ( Math . pow ( 3 , j ) * Math . pow ( 2 , i ) >= a && Math . pow ( 3 , j ) * Math . pow ( 2 , i ) <= b ) {
        h . add ( ( int ) Math . pow ( 3 , j ) * ( int ) Math . pow ( 2 , i ) ) ;
      }
    }
  }
  System . out . println ( h . size ( ) ) ;
}

public static void main ( String args [ ] ) { Scanner scan = new Scanner ( System . in ) ; int a = scan . nextInt ( ) ; int b = scan . nextInt ( ) ; HashSet < Integer > h = new HashSet < Integer > ( ) ; for ( int j = 0 ; Math . pow ( 2 , j ) <= b ; j ++ ) { if ( Math . pow ( 2 , j ) >= a && Math . pow ( 2 , j ) <= b ) { h . add ( ( int ) Math . pow ( 2 , j ) ) ; } if ( Math . pow ( 3 , j ) >= a && Math . pow ( 3 , j ) <= b ) { h . add ( ( int ) Math . pow ( 3 , j ) ) ; } } for ( int i = 0 ; Math . pow ( 2 , i ) <= b ; i ++ ) { for ( int j = 0 ; Math . pow ( 3 , j ) <= b ; j ++ ) { if ( Math . pow ( 3 , j ) * Math . pow ( 2 , i ) >= a && Math . pow ( 3 , j ) * Math . pow ( 2 , i ) <= b ) { h . add ( ( int ) Math . pow ( 3 , j ) * ( int ) Math . pow ( 2 , i ) ) ; } } } System . out . println ( h . size ( ) ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier) dimensions: (dimensions))) 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: (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)))) (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 (type_identifier))) 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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))))))))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier)))) right: (identifier)) right: (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier)))) right: (identifier)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier)))) right: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier)))))))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))))