c=a+b

#include<iostream.h>
#include<stdio.h>
#include<fstream.h>
#include<stdlib.h>
#include<conio.h>
 int main()
{
 int a, b, c, sum;
 clrscr();
 printf("Enter 2 integers to add:""\n");
 cin>>a>>b;
 {
  c=a+b;
  b=a+c;
  a=b+c;
 }
 {
  cout<<"The sum of "<<a<<" and "<<b<<" is "<<c<<"."<<endl;
  cout<<"The sum of "<<a<<" and "<<c<<" is "<<b<<"."<<endl;
  cout<<"The sum of "<<b<<" and "<<c<<" is "<<a<<"."<<endl;
 }
 getch();
}