C :

#include<stdio.h>
int main(){
	int a,b,sum;
	scanf("%d %d",&a,&b);
	sum=a+b;
	printf("%d\n",sum);
	return 0;
}

C++ :

#include<iostream>
using namespace std;
int main()
{
	int a,b;
	cin>>a>>b;
	cout<<a+b;
	return 0;
}

Pascal :

var
 a,b,n:longint;
begin
 read(a,b);
 n:=a+b;
 writeln(n);
end.