include <bits/stdc++.h>

include

include

using namespace std; double value1,value2;

template class vectorClass { T* arr; int current;

public: vectorClass() { arr = new T[1]; current = 0; }

void push(T data) 
{ 
    arr[current] = data; 
    current++; 
} 

void pop() 
{ 
    current--; 
} 

int size() 
{ 
    return current; 
} 

T top()
{
    return arr[current-1];
}

bool isEmpty()
{
    if(current==0)
    return true;
    else return false;
}

}; int precedence(char op){ if(op == '+'||op == '-') return 1; if(op == '*'||op == '/' ||op=='%') return 2; return 0; }

double applyOp(double a, double b, char op){ switch(op){ case '+': return a + b; case '-': return a - b; case '': return a b; case '/': {if (b!=0) return a / b;}; case '%': return fmod(a,b); } return 0; }

double evaluate(string str){ int i;

vectorClass<double> values; 
vectorClass<char> ops; 

for(i = 0; i < str.length(); i++){ 

  if(str[i] == '(')
        ops.push(str[i]); 


 else if(isdigit(str[i]))
 { 
    int start=i;
        while((i < str.length()) && (isdigit(str[i])||str[i]=='.'))
        i++; 
    int end=i;
    int string_size=end-start; 
    string subs=str.substr(start,string_size);
    double value = stod(subs,NULL);
    values.push(value); 
    i--;
  } 

else if(str[i] == ')') 
    { 
        while(!ops.isEmpty() && ops.top() != '(') 
        { 
            double value2 = values.top();
            values.pop(); 
            double value1 = values.top();
            values.pop(); 
            char op = ops.top();
            ops.pop(); 
            double ans=applyOp(value1,value2,op);
            values.push(ans); 
        } 

        if(!ops.isEmpty()) 
           ops.pop(); 
    } 

else
    { 
        while(!ops.isEmpty() && precedence(ops.top()) >= precedence(str[i]))
        { 
            value2 = values.top();
            values.pop(); 
            value1 = values.top();
            values.pop(); 
            char op = ops.top();
            ops.pop() ;
            values.push(applyOp(value1,value2,op)); 
        } 

        ops.push(str[i]); 
    } 
} 

while(!ops.isEmpty()){ 
   value2 = values.top();
   values.pop();
   value1 = values.top();
   values.pop();
   char op = ops.top();
   ops.pop();
   values.push(applyOp(value1,value2,op)); 
   }

return values.top(); }

int main() {

string s; cin>>s; double ans=evaluate(s); cout<<fixed<<setprecision(5)<<ans<<endl; return 0; }