#include <bits/stdc++.h>
using namespace std;
void brainfuck(int r) {
  int volte = 0;
  stack<int> ans;
  while (r > 0) {
    int resto = r % 10;
    ans.push(resto);
    r -= resto;
    r /= 10;
  }
  while (!ans.empty()) {
    int bit = ans.top();
    ans.pop();
    switch (bit) {
      case 0:
        for (int i = 0; i < 48; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 1:
        for (int i = 0; i < 49; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 2:
        for (int i = 0; i < 50; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 3:
        for (int i = 0; i < 51; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 4:
        for (int i = 0; i < 52; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 5:
        for (int i = 0; i < 53; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 6:
        for (int i = 0; i < 54; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 7:
        for (int i = 0; i < 55; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 8:
        for (int i = 0; i < 56; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
      case 9:
        for (int i = 0; i < 57; i++) {
          cout << "+";
        }
        cout << ">";
        volte++;
        break;
    }
  }
  int tem = volte;
  while (volte > 0) {
    cout << "<";
    volte--;
  }
  for (int i = 0; i < tem; i++) {
    if (i == tem - 1) {
      cout << "." << endl;
    } else {
      cout << ".>";
    }
  }
}
int main(void) {
  string input;
  string change = "";
  int result = 0, aux;
  int i = 0;
  char op, less;
  getline(cin, input);
  for (i = 0; true; i++) {
    if (input[i] == '+' || input[i] == '-') {
      if (input[i] == '+') {
        op = '+';
        less = '+';
        i++;
      } else {
        op = '-';
        less = '-';
        i++;
      }
      break;
    } else {
      change += input[i];
    }
  }
  sscanf(change.c_str(), "%d", &aux);
  result += aux;
  change.clear();
  change = "";
  for (; i < input.size(); i++) {
    if (input[i] == '+' || input[i] == '-') {
      sscanf(change.c_str(), "%d", &aux);
      if (less == '+') {
        result += aux;
      } else {
        result -= aux;
      }
      if (input[i] == '+') {
        less = '+';
      } else {
        less = '-';
      }
      change.clear();
      change = "";
    } else {
      change += input[i];
    }
  }
  sscanf(change.c_str(), "%d", &aux);
  if (less == '+') {
    result += aux;
  } else {
    result -= aux;
  }
  if (result == 0) {
    cout << "++++++++++++++++++++++++++++++++++++++++++++++++." << endl;
  } else {
    brainfuck(result);
  }
  return 0;
}
