class Zasobnik {
	private class ZPolozka {
		int hodnota;
		ZPolozka dalsi;
		
		public ZPolozka(int hodnota, ZPolozka dalsi) {
			this.hodnota = hodnota;
			this.dalsi = dalsi;
		}
	}
	
	private ZPolozka vrchol;
	
	public Zasobnik() {
		this.vrchol = null;
	}
	
	public void Push(int hodnota) {
		this.vrchol = new ZPolozka(hodnota, this.vrchol);
	}
	
	public int Pop() {
		int hodnota = this.vrchol.hodnota;
		this.vrchol = this.vrchol.dalsi;
		return hodnota;
	}
	
	public boolean isEmpty() {
		return (this.vrchol == null);
	}
	
	public void PushCommand(char command, int cislo) {
		if (command=='+') this.Push(this.Pop()+this.Pop());
		else if (command=='-') this.Push(this.Pop()-this.Pop());
		else if (command=='*') this.Push(this.Pop()*this.Pop());
		else if (command=='/') this.Push(this.Pop()/this.Pop());
		else this.Push(cislo);
	}
}

class Strom {
	class SPrvek {
		SPrvek levy;
		SPrvek pravy;
		
		String commands = new String("");
		char operator = ' ';
		int number = 0;
		
		public SPrvek(String commands) {
			this.commands = commands;
		}
	}

	SPrvek vrchol;
	
	public Strom(String commands) {
		this.vrchol = new SPrvek(commands);
	}
	
	public void parsuj(SPrvek x) {
		int cLength = 0;
		int pZavorek = 0;
		int sBegin = 0;
		int sEnd = 0;
		char znak = ' ';
		
		if ((x.commands.indexOf('+')==-1)
			&& (x.commands.indexOf('-')==-1)
			&& (x.commands.indexOf('*')==-1)
			&& (x.commands.indexOf('/')==-1)) {
			x.number = Integer.parseInt(x.commands);
			return;
		}
		
		cLength = x.commands.length();
		for(int i=cLength-1;i>=0;i--) {
			if (x.commands.charAt(i)==')') pZavorek++;
			if (x.commands.charAt(i)=='(') pZavorek--;
			
			znak = x.commands.charAt(i);
			
			if ((pZavorek==0) && ((znak=='+') || (znak=='-') || (znak=='*') || (znak=='/'))) {

				sBegin = 0;
				sEnd = i;
				if (x.commands.charAt(0)=='(') sBegin++;
				if (x.commands.charAt(i-1)==')') sEnd--; 
				String lCast = x.commands.substring(sBegin, sEnd);
				
				sBegin = i+1;
				sEnd = cLength;
				if (x.commands.charAt(i+1)=='(') sBegin++;
				if (x.commands.charAt(cLength-1)==')') sEnd--; 
				String pCast = x.commands.substring(sBegin, sEnd);

				char operator = znak;
				
				System.out.println(lCast + " a "+pCast + " op: "+operator);
				
				x.operator = operator;
				x.levy = new SPrvek(lCast);
				x.pravy = new SPrvek(pCast);
				break;
			}
		}
		this.parsuj(x.levy);
		this.parsuj(x.pravy);
	}
	
	void postorderR(SPrvek x, Zasobnik zasobnik){
		if (x==null) return;
		
		this.postorderR(x.levy, zasobnik);
		this.postorderR(x.pravy, zasobnik);
		if (x.operator!=' ') {
			System.out.println(x.operator+" ");
		} else {
			System.out.println(x.number+" ");
		}
		zasobnik.PushCommand(x.operator, x.number);
	}
	
	public int getValue() {
		Zasobnik zasobnik = new Zasobnik();
		this.postorderR(this.vrchol, zasobnik);
		
		if (zasobnik.isEmpty()) return 0;
		
		return zasobnik.Pop();
	}	
}

public class Cv06Pr3 {
	public static void main(String[] args) {
		Strom parser = new Strom("((2+4)*(1+3))+2");
		parser.parsuj(parser.vrchol);
		System.out.println(parser.getValue());
	}
}