#include <iostream>              
using namespace std ;            
int main()  
{                         // ALL BEGINS
  int i,j;                // integers i and j
  i=5;                    // set values to i and j 
  j=20;
  int k=i+j;              // define k on the fly
  cout<<"k="<<k<<endl;    // output to screen                         
  return 0;               // all fine 
}                         // ALL ENDS