#include<iostream>
using namespace std;
int main()
{
cout<<"Hello, World!";
return 0;
}

begin
write('Hello, World!');
end.

史上最长a+b！！！1000字！！！
#include<iostream>
#define so_croting 1
#define so_croming -1
#define so_crowing 0
#define ant_if if
#define ant_else else
# define _GLIBCXX_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY(V)
namespace std _GLIBCXX_VISIBILITY(default) {}
using namespace std;
typedef int node;
node a,b;
void outstring(string n) {
cout << n << endl;
}
void output(node n) {
cout << n << endl;
}
void sitting() {
outstring("请您稍等谢谢！");
}
void sleep() {
for (int j = 0; j < 100; j++);
sitting();
}
void made();
void make();
void input(node s) {
ant_if(s == 1) {
cin >> a >> b;
}
ant_else{output(a + b);}
}
void made_so_make() {
made();
make();
}
void made() {
input(so_croting);
for (int i = 0; i < 100; i++) {
outstring("LOGIN");
sleep();
system("cls");
}
for (int i = 0; i < 100; i++) {
outstring("COMPUTEING");
sleep();
system("cls");
}
}
void make() {
input(so_croming);
}
int main() {
made_so_make();
return so_crowing;
}