#include <iostream>
#include <string>
#include <vector>

using namespace std;

bool is_number(string s)
{ return s[0] >= '0' && s[0] <= '9'; }

int string_to_int(string s)
{ int n = 0;
  for (int i = 0; i < s.length(); i += 1)
    n = n * 10 + s[i] - '0';
  return n; }

void main()
{ vector<string> sv;
  vector<int> iv;
  while (true)
  { string s;
    cin >> s;
    if (cin.fail()) break;
    if (is_number(s))
    { iv.push_back(string_to_int(s));
      sv.push_back(s); }
    else
    { int b = iv.back();
      iv.pop_back();
      int a = iv.back();
      iv.pop_back();
      if (s == "+")
        iv.push_back(a + b);
      else if (s == "-")
        iv.push_back(a - b);
      else if (s == "*")
        iv.push_back(a * b);
      else if (s == "/")
        iv.push_back(a / b);

      string bs = sv.back();
      sv.pop_back();
      string as = sv.back();
      sv.pop_back();
      sv.push_back("(" + as + s + bs + ")"); } }
  cout << sv.back() << " = " << iv.back() << "\n"; }