WAP to add two number in c/c++

Addition is an easy and common method you can easily add 2+2=4
3+2=5, but now add 4332232+122332=???, to overcome these problem in programming, or to make addition by the help of a computer program, here I teach you basic of computer programming to add two number.
Basic Logic
If we need  to add two variable (a+b) and display/save this value.
for this we can save the value of addition in another variable c, and then display c
c=a+b
to understand this program you should Know  basic programming , and how to input a number and display it.
 Program
 #include<iostream.h>
#include<conio.h>
#include<stdio.h>

void main ( )             //main starts
{
  int a,b,c;
 cout<<"Input 1st No.\n";
 cin>>a;
 cout<<"\nInput Second No.\n";
 cin>>b;
 c=a+b;                    // addition is performed
 cout<<"\nThe Sum of Two No. is\t";
 cout<<c;
 cout<<"\n\n\n\t\t****Program Ends****";
 getch();                  // to hold the screen
}                            //main ends