#include <bits/stdc++.h>
using namespace std;
int main() {
  int sum = 0;
  string s;
  cin >> s;
  int j = -1;
  if (isdigit(s[j + 1]) && isdigit(s[j + 2]) && isdigit(s[j + 3])) {
    sum += ((s[j + 1] - '0') * 100 + (s[j + 2] - '0') * 10 + s[j + 3] - '0');
    j += 3;
  } else if (isdigit(s[j + 1]) && isdigit(s[j + 2])) {
    sum += ((s[j + 1] - '0') * 10 + (s[j + 2] - '0'));
    j += 2;
  } else {
    sum += s[j + 1] - '0';
    j++;
  }
  for (int i = j; i < s.size(); i++) {
    if (s[i] == '+') {
      if (isdigit(s[i + 1]) && isdigit(s[i + 2]) && isdigit(s[i + 3])) {
        sum +=
            ((s[i + 1] - '0') * 100 + (s[i + 2] - '0') * 10 + s[i + 3] - '0');
        i += 3;
      } else if (isdigit(s[i + 1]) && isdigit(s[i + 2])) {
        sum += ((s[i + 1] - '0') * 10 + (s[i + 2] - '0'));
        i += 2;
      } else {
        sum += s[i + 1] - '0';
        i++;
      }
    } else if (s[i] == '-') {
      if (isdigit(s[i + 1]) && isdigit(s[i + 2]) && isdigit(s[i + 3])) {
        sum -=
            ((s[i + 1] - '0') * 100 + (s[i + 2] - '0') * 10 + s[i + 3] - '0');
        i += 3;
      } else if (isdigit(s[i + 1]) && isdigit(s[i + 2])) {
        sum -= ((s[i + 1] - '0') * 10 + (s[i + 2] - '0'));
        i += 2;
      } else {
        sum -= s[i + 1] - '0';
        i++;
      }
    }
  }
  int flag1 = 0;
  if (sum / 100 > 0) {
    for (int i = 0; i < sum / 100; i++) {
      cout << '+';
    }
    cout << "++++++++++++++++++++++++++++++++++++++++++++++++.>" << endl;
    flag1 = 1;
  }
  if (sum / 10 || flag1) {
    for (int i = 0; i < (sum / 10) % 10; i++) {
      cout << '+';
    }
    cout << "++++++++++++++++++++++++++++++++++++++++++++++++.>" << endl;
  }
  for (int i = 0; i < sum % 10; i++) {
    cout << '+';
  }
  cout << "++++++++++++++++++++++++++++++++++++++++++++++++.>" << endl;
  return 0;
}
