#include<iostream>
int main(void) {
int num = 20;
std::cout << "Hello Wolrd!" << std::endl;
std::cout << "Hello" << "World!" << std::endl;
std::cout << num << ' ' << 'A';
std::cout << ' ' << 3.14 << std::endl;
return 0;
}
* #include<iostream>
* std::cout << std::endl
