#include <iostream>
#include <cstring>
#include <cmath>

using namespace std;

class Distance{
    private:
    int yards,fleet,inches;
    void copy(Distance &d){
        this->yards = d.yards;
        this->fleet = d.fleet;
        this->inches = d.inches;
    }

    public:
    Distance(int yards = 0,int fleet = 0,int inches = 0){
        this->yards = yards;
        this->fleet = fleet;
        this->inches = inches;
    }
    Distance(Distance &d){copy(d);}
    ~Distance(){}

    void info(){
        cout<<this->yards<<" yd "<<this->fleet<<"' "<<this->inches<<"''";
    }

    double cm(){
        return ((this->yards*3*12) + (this->fleet*12) + (this->inches))*2.54;
    }

    int getYards(){
        return this->yards;
    }
    int getFleet(){
        return this->fleet;
    }

    int getInches(){
        return this->inches;
    }

    void setYards(int x){
        this->yards = x;
    }
    void setFleet(int x){
        this->fleet = x;
    }
    void setInches(int x){
        this->inches = x;
    }


    friend Distance operator+(const Distance &d1,const Distance &d2){
        Distance d;
        d.yards = d1.yards+d2.yards;
        d.fleet = d1.fleet+d2.fleet;
        d.inches = d1.inches+d2.inches;
        return d;
    }
    friend Distance operator-(const Distance &d1,const Distance &d2){
        Distance d;
        d.yards = d1.yards-d2.yards;
        d.fleet = d1.fleet-d2.fleet;
        d.inches = d1.inches-d2.inches;
        return d;
    }

};

void rectify(Distance &d){

    if(d.getInches() >=12){
        d.setInches(d.getInches()-12);
        d.setFleet(d.getFleet()+1);
    }
    if(d.getFleet() >=3){
        d.setFleet(d.getFleet()-3);
        d.setYards(d.getYards()+1);
    }
    if(d.getInches()<=0){
        d.setInches(d.getInches()+12);
        d.setFleet(d.getFleet()-1);
    }
    if(d.getFleet()<=0){
        d.setFleet(d.getFleet()+3);
        d.setYards(d.getYards()-1);
    }


}

int main()
{
    int x,y,z;
    int x1,y1,z1;
    cout<<"Enter the (integer) yards, fleet, inches of a distance a: ";
    cin>>x>>y>>z;
    Distance d1(x,y,z);
    cout<<"Enter the (integer) yards, fleet, inches of a distance b: ";
    cin>>x>>y>>z;
    Distance d2(x,y,z);

    cout<<endl;
    cout<<endl;

    cout<<"The following distances have been input:"<<endl;
    cout<<"a = "; d1.info();cout<<" = "<<d1.cm(); cout<<" cm"<<endl;
    cout<<"b = "; d2.info();cout<<" = "<<d2.cm(); cout<<" cm"<<endl;

    cout<<endl;
    cout<<endl;

    Distance c;
    c = d1+d2;
    cout<<"a + b = ";c.info(); cout<<" = "<<c.cm(); cout<<" cm"<<endl;
    c = d1-d2;
    cout<<"a - b = ";c.info(); cout<<" = "<<c.cm(); cout<<" cm"<<endl;


    rectify(d1);
    rectify(d2);

    cout<<endl;
    cout<<endl;

    cout<<"The following distances have been input:"<<endl;
    cout<<"a = "; d1.info();cout<<" = "<<d1.cm(); cout<<" cm"<<endl;
    cout<<"b = "; d2.info();cout<<" = "<<d2.cm(); cout<<" cm"<<endl;

    cout<<endl;
    cout<<endl;

    c = d1+d2;
    cout<<"a + b = ";c.info(); cout<<" = "<<c.cm(); cout<<" cm"<<endl;
    c = d1-d2;
    cout<<"a - b = ";c.info(); cout<<" = "<<c.cm(); cout<<" cm"<<endl;
    return 0;
}