#include <cstdio>
#include <cstring>
#define s1 q[1]
#define s2 q[2]
using namespace std;
char s[100005];long i;
long solve()
{
	long v[3]={0,0,0},c=0;char l,q[4]={'+','+','+','+'};
	while(1){
		l=s[i];
		if((l>='0')&&(l<='9')){v[c]=v[c]*10+l-'0';}
		if(l=='('){i++;v[c]=solve();}
		if(l=='*'){c++;q[c]=l;}
		if(l=='/'){c++;q[c]=l;}
		if(l=='-'){c++;q[c]=l;}
		if(l=='+'){c++;q[c]=l;}
		if(l==')'){
			if((s1=='*')&&(s2=='*')){v[0]=v[0]*v[1]*v[2];}
			if((s1=='*')&&(s2=='/')){v[0]=v[0]*v[1]/v[2];}
			if((s1=='*')&&(s2=='+')){v[0]=v[0]*v[1]+v[2];}
			if((s1=='*')&&(s2=='-')){v[0]=v[0]*v[1]-v[2];}
			if((s1=='/')&&(s2=='*')){v[0]=v[0]/v[1]*v[2];}
			if((s1=='/')&&(s2=='/')){v[0]=v[0]/v[1]/v[2];}
			if((s1=='/')&&(s2=='+')){v[0]=v[0]/v[1]+v[2];}
			if((s1=='/')&&(s2=='-')){v[0]=v[0]/v[1]-v[2];}
			if((s1=='+')&&(s2=='*')){v[0]=v[0]+v[1]*v[2];}
			if((s1=='+')&&(s2=='/')){v[0]=v[0]+v[1]/v[2];}
			if((s1=='+')&&(s2=='+')){v[0]=v[0]+v[1]+v[2];}
			if((s1=='+')&&(s2=='-')){v[0]=v[0]+v[1]-v[2];}
			if((s1=='-')&&(s2=='*')){v[0]=v[0]-v[1]*v[2];}
			if((s1=='-')&&(s2=='/')){v[0]=v[0]-v[1]/v[2];}
			if((s1=='-')&&(s2=='+')){v[0]=v[0]-v[1]+v[2];}
			if((s1=='-')&&(s2=='-')){v[0]=v[0]-v[1]-v[2];}
			return v[0];
				}
		if(c==3){
			if((s2=='*')){v[1]*=v[2];s2='+';c--;v[2]=0;q[2]=q[3];}
			if((s2=='/')){v[1]/=v[2];s2='+';c--;v[2]=0;q[2]=q[3];}
				}
		if(c==3){
			if((s1=='*')){v[0]*=v[1];}
			if((s1=='/')){v[0]/=v[1];}
			if((s1=='+')){v[0]+=v[1];}
			if((s1=='-')){v[0]-=v[1];}
			s1=s2;c--;v[1]=v[2];v[2]=0;s2='+';q[2]=q[3];
				}
		i++;
					   }
}
int main()
{
	freopen("evaluare.in","r",stdin);
	freopen("evaluare.out","w",stdout);
	fgets(s,1000000,stdin);
	i=strlen(s);s[i]=')';i=0;
	printf("%ld",solve());
	
return 0;
}