```
java ru.fizteh.fivt.students.piakovenko.calculator.Calculator 0*99999
Exception in thread "main" java.lang.ArithmeticException: / by zero
	at ru.fizteh.fivt.students.piakovenko.calculator.Node.calculation(Node.java:13)
	at ru.fizteh.fivt.students.piakovenko.calculator.Node.calculate(Node.java:78)
	at ru.fizteh.fivt.students.piakovenko.calculator.Tree.parseCalculationTree(Tree.java:93)
	at ru.fizteh.fivt.students.piakovenko.calculator.Calculator.main(Calculator.java:36)
```