C :

#include "stdio.h"
int main(){
long long a,b,s;
scanf("%lld%lld",&a,&b);
s=a+b;
printf("%lld\n",s);
return 0;}

C++ :

#include <iostream>
using namespace std;

int main()
{
	long long a, b;
  	cin >> a >> b;
  	cout << a+b << endl;
  	//return 0;
}

Pascal :

program xx;
var a,b,c:int64;
begin
  read(a,b);
c:=a+b;
writeln(c);
end.