```
java -cp out:out_private ru.fizteh.fivt.students.mescherinilya.calculator.Calculator ()
Exception in thread "main" java.util.NoSuchElementException
	at java.util.ArrayDeque.removeFirst(ArrayDeque.java:278)
	at java.util.ArrayDeque.pop(ArrayDeque.java:507)
	at ru.fizteh.fivt.students.mescherinilya.calculator.Calculator.main(Calculator.java:213)
```