#include <iostream>
#include <string>

int main() {
    std::cout << "Hello world!" << std::endl;
    std::cout << "stop" << std::endl;
    std::cout << "unfortunatly" << std::endl;
    std::cout << "next time , you have to take some vegetable" << std::endl;
    std::cout << "forget this" << std::endl;
    return 0;
 }