#include <iostream>

int main() {
    std::cout << "Hello world!" << std::endl;
    Std::cout << "hello"<< std::endl;
    std::cout << "esta bien ?" << std::endl;
    std::cout << " e tudo bene" << std ::endl;
    std::cout << "bom dia" << std::endl;
    std :: cout << "muite obrigada" << std::endl;
    std :: cout << "obrigado" << std::endl;
    std::cout << "bo sala tout" << std::endl;    
    return 0;
}