#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vll = vector<ll>;
using vvll = vector<vector<ll>>;
const ld eps = 1e-9;
const ll MOD = 1000000007;
const int INF = 1000000000;
const ll LINF = 1ll<<50;
template<typename T>
void printv(const vector<T>& s) {
  for(int i=0;i<(int)(s.size());++i) {
    cout << s[i];
    if(i == (int)(s.size())-1) cout << endl;
    else cout << " ";
  }
}
template<typename T1, typename T2>
ostream& operator<<(ostream &os, const pair<T1, T2> p) {
  os << p.first << ":" << p.second;
  return os;
}
using State = string::const_iterator;
State ed;
bool consume(State &begin, char expected) {
  if(begin == ed) return false;
  if(*begin == expected) {
    begin++;
    return true;
  } else {
    return false;
  }
}
int pl(State &begin, int depth);
int mul(State &begin, int depth);
int par(State &begin, int depth);
int num(State &begin);
bool ok = true;
void check(int num) {
  ok &= 0 <= num && num < 1024;
}
int pl(State &begin, int depth) {
  int num = mul(begin, depth);
  while(1) {
    if(consume(begin, '+')) {
      num += mul(begin, depth);
      check(num);
    } else if(consume(begin, '-')) {
      num -= mul(begin, depth);
      check(num);
    } else {
      return num;
    }
  }
}
int mul(State &begin, int depth) {
  int num = par(begin, depth);
  if(consume(begin, '*')) {
    num *= mul(begin, depth);
    check(num);
    return num;
  } else {
    return num;
  }
}
int par(State &begin, int depth) {
  if(consume(begin, '(')) {
    State prev = begin;
    int res = pl(begin, depth+1);
    check(res);
    bool op = false;
    int nowdepth = depth;
    for(auto it=prev;it<begin;++it) {
      if(*it == '(') nowdepth++;
      else if(*it == ')') nowdepth--;
      else if(depth == nowdepth) {
        op |= *it == '+' || *it == '-' || *it == '*';
      }
    }
    ok &= op;
    ok &= consume(begin, ')');
    return res;
  } else {
    return num(begin);
  }
}
int num(State &begin) {
  int res = 0;
  if(!isdigit(*begin)) {
    ok = false;
    return -1;
  }
  while(isdigit(*begin)) {
    res <<= 1;
    res += *begin - '0';
    check(res);
    if(!ok) break;
    begin++;
  }
  return res;
}
int dfs(int n, int k, string &s) {
  if(n == k) {
    State begin = s.begin();
    ed = s.end();
    ok = true;
    int res = pl(begin, 0);
    ok &= begin == ed;
    return ok ? res : -1;
  } else if(s[k] != '.') {
    return dfs(n, k+1, s);
  } else {
    int ma = -1;
    string tmp = "01+-*)(";
    for(int i=0;i<(int)(tmp.size());++i) {
      s[k] = tmp[i];
      ma = max(ma, dfs(n, k+1, s));
    }
    s[k] = '.';
    return ma;
  }
}
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << fixed << setprecision(10);
  string s; cin >> s;
  int n = (int)(s.size());
  cout << dfs(n, 0, s) << endl;
}

