//This file is field.h.
#ifndef FIELDH
#define FIELDH

#include <iostream>
#include <string>
using namespace std;

class field {
	string s;
public:
	operator string() const {return s;}
	friend ostream& operator<<(ostream& os, const field& f) {return os << f.s;}
	friend istream& operator>>(istream& is, field& f);
};
#endif