```
java -cp out:out_private ru.fizteh.fivt.students.elenav.calc.Calculator 17*0
Exception in thread "main" java.lang.ArithmeticException: / by zero
	at ru.fizteh.fivt.students.elenav.calc.Calculator.calculate(Calculator.java:129)
	at ru.fizteh.fivt.students.elenav.calc.Calculator.main(Calculator.java:150)
```