#include
     
      #include
      
       #include
       
        using namespace std;//post expression computeint compute(int num1, int num2, char op){	if (op == '+')		return num1 + num2;	else if (op == '-')		return num1 - num2;	else if (op == '*')		return num1*num2;	else if (op == '/')		return num2 / num1;}int main(){	stack
        
         num;	string s;	cin >> s;	for (int i = 0; i