#include<iostream.h>
#include<conio.h>
class time
{private:int h;
	 int m;
	 int s;
 public:time()
	{h=0;m=0;s=0;}
	time(int a,int b,int c)
	{h=a;m=b;s=c;}
	void getdata();
	void showdata()
	{cout<<"\n the time -> "<<h<<":"<<m<<":"<<s<<".";
	 cout<<"\n";
	 getch();
	}
	void sum(time a,time b)
	{int t=0;
	 h=a.h+b.h;
	 m=a.m+b.m;
	 s=a.s+b.s;
	 if(s>60)
	 {t=s/60;
	  s=s-(60*t);
	  m=m+t;
	 }
	 t=0;
	 if(m>60)
	 {t=m/60;
	  m=m-(60*t);
	  h=h+t;
	 }
	}
}t1,t2,t3;
void time :: getdata()
{int c=0,t=0;
 clrscr();
 while(c==0)
 {cout<<"\n enter the parameters of time \n";
  cout<<"\n enter seconds: ";
  cin>>s;
  if(s<0)
  {cout<<"\n please enter the positive value \n";
  }
  else
  {if(s>60)
   {t=s/60;
    s=s-(t*60);
   }
   c=1;
  }
 }
 c=1;
 while(c==1)
 {cout<<"\n enter minutes: ";
  cin>>m;
  if(m<0)
  {cout<<"\n you have entered wrong value enter again";
  }
  else
  {m=m+t;
   if(m>60)
   {t=m/60;
     m=m-(t*60);
   }
   else
   {t=0;}
   c=0;
  }
 }
 c=0;
 while(c==0)
 {cout<<"\n enter hour: ";
  cin>>h;
  if(h<0)
  {cout<<"\n sorry you have entered wrong value enter again";
  }
  else
  {h=h+t;
   c=1;
  }
 }
}
void main()
{int n,i;
 clrscr();
 t1.getdata();
 t1.showdata();
 t2.getdata();
 t2.showdata();
 cout<<" sum of";
 t3.sum(t1,t2);
 t3.showdata();
 getch();
}