#include <iostream>
using namespace std;
//this is macro we define already vikasage 
#define Vikasage 19;
// jab bhi vikas age use krenge 19 print hoga 
  int add(int x, int y){

    return (x+y) ;
}

inline int sub (int x,int y){
return (x-y);

}
int main() {

  cout << "Hello world!" <<endl;
    cout<<add(3,4)<<endl;

//calling inline function
cout<<sub(45,5)<<endl;

// ab inline function esha hota h jab program run hoga
// tab jo bhi function me program hoga woh program me hi aajeya
// jese return x-y direct aajayga program m hi
// isse time km hoga program function pr jump.nhi karega
// program hi aajyega niche jha se call kra 
// ye bss small function k liye h agr recursion wgera use hoga 
// toh compiler inline ko ignore kr dega 


// macro function print
cout<<Vikasage;
return 0;





}