#pragma once

#include <fstream>
#include <vector>
#include <string>

using namespace std;

struct Stackitem{
	bool isstr;
	string strval;
	int intval;

	Stackitem(void);
	Stackitem(int _i);
	Stackitem(const string &_s);
	Stackitem(const Stackitem&);
	Stackitem(Stackitem &&other);
	Stackitem& operator=(const Stackitem&);
	Stackitem& operator=(Stackitem &&other);
	explicit operator bool(void) const;
	bool operator==(const Stackitem &other) const;
};

vector<string> tokenise(istream &stream);
void run(vector<string> T);