// 22.5HV2 Software Engineering II
// Unit 3 Exercise 2
#include <iostream.h>

class Imperial {
friend ostream& operator<<(ostream&, const Imperial&);
friend istream& operator>>(istream&, Imperial&);
friend Imperial operator+(const Imperial&, const Imperial&);
friend Imperial operator-(const Imperial&, const Imperial&);
friend bool operator<(const Imperial&, const Imperial&);
friend bool operator>(const Imperial&, const Imperial&);
friend bool operator<=(const Imperial&, const Imperial&);
friend bool operator>=(const Imperial&, const Imperial&);
friend bool operator==(const Imperial&, const Imperial&);
friend bool operator!=(const Imperial&, const Imperial&);
public:
   Imperial(int st=0, int lb=0, int oz=0): stones(st), pounds(lb), ounces(oz) { reduce(); }
private:
   void reduce();
   int stones, pounds, ounces;
};