#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;

ll get_val(ll a, char op, ll b)
{
    switch (op) {
        case '*':
            return a * b;
        case '+':
            return a + b;
        case '-':
            return a - b;                
    }
    assert(0);
}

class Calc {
    string str;
    vector<char> p;
    string::iterator it;
  
  public:
    Calc(const string &str, vector<char> p){
        this->str = str;        
        this->p   = p;
        it        = this->str.begin();    
    }
      
    ll f0()
    {
        ll res = 0;
        if (*it == '(') {
            ++it;
            res = f3();
            ++it;
        } else {
            while (isdigit(*it)) {
                res *= 10LL;
                res += (ll)(*it - '0');
                ++it;
            }
        }
        return res;
    }
  
    ll f1()
    {
        ll res = f0();
        while (*it == p[0]) {
            ++it;            
            res = get_val(res, p[0], f0());
        }
        return res;
    }
 
    ll f2()
    {
        ll res = f1();
        while (*it == p[1]) {
            ++it;
            res = get_val(res, p[1], f1());
        }
        return res;
    }
         
    ll f3()
    {
        ll res = f2();
        while (*it == p[2]) {
            ++it;
            res = get_val(res, p[2], f2());
        }
        return res;
    }
};
 
class Calc2 {
    string str;
    vector<char> p;
    string::iterator it;
   
  public:
    Calc2(const string &str, vector<char> p){
        this->str = str;        
        this->p   = p;
        it        = this->str.begin();    
    }
  
    ll f0()
    {
        ll res = 0;
        if (*it == '(') {
            ++it;
            res = f2();
            ++it;
        } else {
            while (isdigit(*it)) {
                res *= 10LL;
                res += (ll)(*it - '0');
                ++it;
            }
        }
        return res;
    }
   
    ll f1()
    {
        ll res = f0();
        while (*it == p[0]) {
            ++it;            
            res = get_val(res, p[0], f0());
        }
        return res;
    }
  
    ll f2()
    {
        ll res = f1();
        while (*it == p[1] || *it == p[2]) {
            if (*it == p[1]) {
                ++it;
                res = get_val(res, p[1], f1());                
            } else {                               
                ++it;
                res = get_val(res, p[2], f1());                
            }
        }
        return res;
    }
};
 
class Calc22 {
    string str;
    vector<char> p;
    string::iterator it;
   
  public:
    Calc22(const string &str, vector<char> p){
        this->str = str;        
        this->p   = p;
        it        = this->str.begin();    
    }
  
    ll f0()
    {
        ll res = 0;
        if (*it == '(') {
            ++it;
            res = f2();
            ++it;
        } else {
            while (isdigit(*it)) {
                res *= 10LL;
                res += (ll)(*it - '0');
                ++it;
            }
        }
        return res;
    }
     
    ll f1()
    {
        ll res = f0();
        while (*it == p[0] || *it == p[1]) {
            if (*it == p[0]) {
                ++it;
                res = get_val(res, p[0], f0());                
            } else {                               
                ++it;
                res = get_val(res, p[1], f0());                
            }
        }
        return res;
    }
  
    ll f2()
    {
        ll res = f1();
        while (*it == p[2]) {
            ++it;
            res = get_val(res, p[2], f1());                
        }
        return res;
    }
};
 
class Calc3 {
    string str;
    vector<char> p;
    string::iterator it;
    
  public:
    Calc3(const string &str, vector<char> p){
        this->str = str;        
        this->p   = p;
        it        = this->str.begin();    
    }
          
    ll f0()
    {
        ll res = 0;
        if (*it == '(') {
            ++it;
            res = f1();
            ++it;
        } else {
            while (isdigit(*it)) {
                res *= 10LL;
                res += (ll)(*it - '0');
                ++it;
            }
        }
        return res;
    }
    
    ll f1()
    {
        ll res = f0();
        while (*it == p[0] || *it == p[1] || *it == p[2]) {
            if (*it == p[0]) {
                ++it;
                res = get_val(res, p[0], f0());                
            } else if (*it == p[1]) {                               
                ++it;
                res = get_val(res, p[1], f0());                
            } else {
                ++it;
                res = get_val(res, p[2], f0());                
            }
        }
        return res;
    }
};
 
int main()
{
    string str;
    cin >> str;
     
    vector<char> p = {'*', '+', '-'};
 
    ll res = LLONG_MIN;    
    do {
        Calc  c(str, p);
        Calc2 c2(str, p);
        Calc22 c22(str, p);
        Calc3 c3(str, p);
        res = max(res, max(max(c.f3(), c2.f2()), max(c22.f2(), c3.f1())));
    } while (next_permutation(p.begin(), p.end()));
    cout << res << endl;    
    return 0;
}