#define _USE_MATH_DEFINES
#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<string>
#include<iomanip>
#include<numeric>
#include<queue>
#include<deque>
#include<stack>
#include<set>
#include<map>
#include<random>
#include<bitset>
#include<cassert>
#include<complex>
#include<fstream>
#include<cstdlib>
#include<functional>
#include<array>
using namespace std;
typedef long long ll;
const int mod=998244353;
const int dx[]={1,1,1,0,0,-1,-1,-1},dy[]={1,0,-1,1,-1,1,0,-1};
typedef string::iterator state;
int num(state&it){
	int res=0;
	while(isdigit(*it)){
		res=res*10+*it-'0';
		it++;
		if(res>10000)
			res=10001;
	}
	return res;
}
int expr(state&it){
	int res=num(it);
	for(;;){
		if(*it=='*'){
			it++;
			res+=num(it);
			if(res>10000)
				res=10001;
		}else if(*it=='+'){
			it++;
			res*=num(it);
			if(res>10000)
				res=10001;
		}else
			return res;
	}
}
int main(){
	string s;
	cin>>s;
	s+=';';
	state it=s.begin();
	cout<<expr(it)<<endl;
}