#pragma once
#include<iostream>

#include<stack>

#include<string.h>

#include<iomanip>

#include<map>

#include<algorithm>

using namespace std;

stack<char> opr;

stack<double> in;

std::map<char, int> m;

double compute(double a, double b, char c)

{

	if (c == '+') return a + b;

	else if (c == '-') return a - b;

	else if (c == '*') return a * b;

	else if (c == '/') return a / b;

}