public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  StringBuilder sb = new StringBuilder ( ) ;
  if ( n == 0 ) {
    System . out . println ( 0 ) ;
    return ;
  }
  while ( n != 0 ) {
    if ( n % - 2 == 0 ) {
      sb . append ( "0" ) ;
      n /= - 2 ;
    }
    else {
      sb . append ( "1" ) ;
      if ( n < 0 ) {
        n /= - 2 ;
        n ++ ;
      }
      else {
        n /= - 2 ;
      }
    }
  }
  String xx = sb . reverse ( ) . toString ( ) ;
  System . out . println ( xx ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; StringBuilder sb = new StringBuilder ( ) ; if ( n == 0 ) { System . out . println ( 0 ) ; return ; } while ( n != 0 ) { if ( n % - 2 == 0 ) { sb . append ( "0" ) ; n /= - 2 ; } else { sb . append ( "1" ) ; if ( n < 0 ) { n /= - 2 ; n ++ ; } else { n /= - 2 ; } } } String xx = sb . reverse ( ) . toString ( ) ; System . out . println ( xx ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (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 (decimal_integer_literal)))) (return_statement))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal))) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal)))) (expression_statement (assignment_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal))))) alternative: (block (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 (expression_statement (assignment_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal)))) (expression_statement (update_expression (identifier)))) alternative: (block (expression_statement (assignment_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal)))))))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))