HOW TO MAKE Matrix By Sum Of Two MatRix And By Multy Of Two Matrix

#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<math.h>
class A
{
int a[3][3],b[3][3],c[3][3],d[3][3],i,j,z,s,t;
public:
A()
{
cout<<"Enter the element of A matrix = ";
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
cin>>a[i][j];
}
}
cout<<"Enter the element of B matrix = ";
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
cin>>b[i][j];
}
}
}
A(int x, int y)
{
s=x;
t=y;
}
void sum()
{
z=s+t;
cout<<"sum of 3 and 5 is= "<<z;
}
void fact()
{
cout<<"matrix A is = f\n";

for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
cout<<a[i][j];
}
cout<<"\n";
}
cout<<"matrix B is = \n";

for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
cout<<b[i][j];
}
cout<<"\n";
}



for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
c[i][j]=a[i][j]*b[i][j];
d[i][j]=a[i][j]+b[i][j];
 }
 }
cout<<"matrix of multy of A and B is= \n";
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
cout<<c[i][j]<<" ";
}
cout<<"\n";
}
cout<<"matrix of sum of A and B is= \n";
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
cout<<d[i][j]<<" ";
}
cout<<"\n";
}
}
};
void main()
{
clrscr();
A x;
x.fact();
A x2(3,5);
x2.sum();

getch();
}