This C++ program asks the user to enter two numbers, stores them in variables a and b, adds those two numbers and stores the sum in variable c, and prints out a message stating "the sum is" followed by the value of c.

1. #include<iostream.h>
void main()
{
int a,b,c;
cout<<"enter two numbers"<<"n";
cin>>a>>b;
c=a+b;
cout<<"the sum is"<<c<<"n";
}