static String nexts ( ) throws IOException {
  tokenizer = new StringTokenizer ( reader . readLine ( ) ) ;
  String s = "" ;
  while ( tokenizer . hasMoreTokens ( ) ) {
    s += tokenizer . nextElement ( ) + " " ;
  }
  return s ;
}

static String nexts ( ) throws IOException { tokenizer = new StringTokenizer ( reader . readLine ( ) ) ; String s = " " ; while ( tokenizer . hasMoreTokens ( ) ) { s += tokenizer . nextElement ( ) + " ▁ " ; } return s ; }
(method_declaration (modifiers) type: (type_identifier) name: (identifier) parameters: (formal_parameters) (throws (type_identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (object_creation_expression type: (type_identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (string_literal))) (while_statement condition: (parenthesized_expression (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) body: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (string_literal)))))) (return_statement (identifier))))