static void printLevel ( int level ) {
  int left_index = ( int ) Math . pow ( 2 , level - 1 ) ;
  int right_index = ( int ) ( Math . pow ( 2 , level ) - 1 ) ;
  for ( int i = left_index ;
  i <= right_index ;
  i ++ ) {
    System . out . print ( fib [ i - 1 ] + " " ) ;
  }
  System . out . println ( ) ;
}

static void printLevel ( int level ) { int left_index = ( int ) Math . pow ( 2 , level - 1 ) ; int right_index = ( int ) ( Math . pow ( 2 , level ) - 1 ) ; for ( int i = left_index ; i <= right_index ; i ++ ) { System . out . print ( fib [ i - 1 ] + " ▁ " ) ; } System . out . println ( ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (binary_expression left: (identifier) right: (decimal_integer_literal))))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (identifier))) right: (decimal_integer_literal)))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (string_literal))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list)))))