static void printWellOrdered ( int number , int x , int k ) {
  if ( k == 0 ) {
    System . out . print ( number + " " ) ;
    return ;
  }
  for ( int i = ( x + 1 ) ;
  i < 10 ;
  i ++ ) printWellOrdered ( number * 10 + i , i , k - 1 ) ;
}

static void printWellOrdered ( int number , int x , int k ) { if ( k == 0 ) { System . out . print ( number + " ▁ " ) ; return ; } for ( int i = ( x + 1 ) ; i < 10 ; i ++ ) printWellOrdered ( number * 10 + i , i , k - 1 ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (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 (binary_expression left: (identifier) right: (string_literal))))) (return_statement))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (expression_statement (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (identifier)) (identifier) (binary_expression left: (identifier) right: (decimal_integer_literal))))))))