#include <fstream>
#include <cstring>
using namespace std;
#define dim 100001
char sir[dim];
int n;
int vf;

pair <int,char> stiva[dim];
	
void solve()
{
	int i,j,k;
	for(i=vf;stiva[i].second!='(';--i);
	
	for(j=i,k=i;j<=vf;++j)
	{
		int val=1,ok=0;
		
		if(stiva[j].second=='*' || stiva[j].second=='/')
		{
				val=stiva[j-1].first;
				ok=1;
				--k;
		}
		
		while(stiva[j].second=='*' || stiva[j].second=='/')
		{
			if(stiva[j].second=='*')
				val*=stiva[j+1].first;
			else
				val/=stiva[j+1].first;
			stiva[j-1].first=stiva[j].second=stiva[j+1].first=0;
			j+=2;
		}
		
		if(ok==1)
			stiva[k++].first=val;
		
		if(stiva[j].first!=0 || stiva[j].second=='+' || stiva[j].second=='-')
			stiva[k++]=stiva[j];
	}
	
	int q=stiva[i].first;
	for(j=i;j<=k;++j)
	{
		if(stiva[j].second=='+')
			q+=stiva[j+1].first;
		if(stiva[j].second=='-')
			q-=stiva[j+1].first;
		
		stiva[j].first=stiva[j].second=0;
	}
	
	vf=i;
	stiva[vf].first=q;
	stiva[vf].second=0;
}

int eval()
{
	int s=0;
	
	for(int i=0;i<strlen(sir);++i)
	{
		int nr=0,ok=0;
		while(isdigit(sir[i]))
		{
			nr=nr*10+sir[i]-'0';
			++i;
			ok=1;
		}
		
		if(ok==1)
			stiva[++vf]=make_pair(nr,0);
		
		if(sir[i]==')')
			solve();
		else
			stiva[++vf]=make_pair(0,sir[i]);
	}
	
	
	stiva[0].second='(';
	solve();
	
	return stiva[0].first;
}

int main()
{
	ifstream fin("evaluare.in");
	ofstream fout("evaluare.out");
	
	fin>>sir;
	fout<<eval();
	return 0;
}