#define _USE_MATH_DEFINES
#include<stdio.h>
#include<string>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include<iomanip>

//#include<bits/stdc++.h>



using namespace std;




int main() {
	
	string s;
	cin>>s;
	long long int n=-9999999999;
	for(int i=0;i<s.size();i++){
		string x=s.substr(i,s.size());
		string y=s.substr(0,i);
		
		string h=x+y;
		if(h[h.size()-1]=='+'|h[h.size()-1]=='-')continue;
		if(h[0]=='+'||h[0]=='-')continue;
		long long int a=0,b=0;
		vector<long long int>q,w;
		for(int j=0;j<h.size();j++){
			if(h[j]=='+')w.push_back(1),q.push_back(a),a=0;
			else if(h[j]=='-')w.push_back(-1),q.push_back(a),a=0;
			else {
				a*=10;a+=h[j]-'0';
			}
		}
		if(a)q.push_back(a);
		b=q[0];
		for(int j=1;j<q.size();j++)
			b+=q[j]*w[j-1];
		n=max(n,b);
	}
	cout<<n<<endl;

	return 0;
}